Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: All toy are doll. Some doll are white. Conclusions: I. No toy is white. II. Some doll are toy.

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Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements.

Statements: All toy are doll. Some doll are white.

Conclusions: I. No toy is white. II. Some doll are toy.

AOnly conclusion II follows.

BOnly conclusion I follows

CNone follows

DBoth conclusions I and II follow

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option a : Only conclusion II follows.
Explanation: Let's analyze the statements and conclusions using a Venn diagram approach.
Statements: * All toy are doll: This means the entire circle representing "toy" is inside the circle representing "doll." * Some doll are white: This means there is an overlap between the circle representing "doll" and the circle representing "white."
Conclusions: * I. No toy is white: This is not necessarily true. While it's *possible* that the "white" circle doesn't overlap with the "toy" circle, it's also possible that it *does* overlap. Since the statement "Some doll are white" allows for the possibility that these "doll" which are "white" are also "toy" (because "toy" is contained by "doll"), we cannot conclude that *no* "toy" is white. Therefore, conclusion I does not necessarily follow. * II. Some doll are toy: Since "All toy are doll", we know that all "toy" are inside the set of "doll". Thus, it logically follows that some of the "doll" are "toy". Therefore, conclusion II follows.

• Option a: This is the correct answer because conclusion II follows and conclusion I does not necessarily follow.
• Option b: This is incorrect because conclusion I does not necessarily follow.
• Option c: This is incorrect because conclusion II follows.
• Option d: This is incorrect because conclusion I does not necessarily follow.

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Find the amount after one and a half year compounded semi annually at 20% per annum and principal is Rs. 20,000.

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Find the amount after one and a half year compounded semi annually at 20% per annum and principal is Rs. 20,000.

ARs. 26,400

BRs. 28,800

CRs. 27,620

DRs. 26,620

Akhilesh ? Apr 7 '25 at 22:36

correct answer is: Rs. 26,620
Explanation: To find the amount after one and a half years with semi-annual compounding at 20% per annum, we use the compound interest formula:

$A = P(1 + \frac{r}{n})^{nt }$

Where:
- P = ₹20,000
- r = 20% = 0.2
- n = 2 (compounded semi-annually)
- t = 1.5 years Plugging in the values: A = $20,000(1 + 0.1)^{3}$

= $20,000(1.1)^3$

= 20,000(1.331)

= ₹26,620

• OPTION a (Rs. 26,400): Incorrect, as it does not match the calculated amount.
• OPTION b (Rs. 28,800): Incorrect, as it is higher than the calculated amount.
• OPTION c (Rs. 27,620): Incorrect, as it does not match the calculated amount.
• OPTION d (Rs. 26,620): Correct, as it matches the calculated amount.

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The red blood cells are produced in ____.

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The red blood cells are produced in ____.

AHeart

BLymph Nodes

CLiver

DBone Marrow

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option d (Bone Marrow)
Explanation: Red blood cells (RBCs), also known as erythrocytes, are produced in the bone marrow through a process called erythropoiesis. The bone marrow contains hematopoietic stem cells that differentiate into various blood cells, including RBCs.

• Option a: The heart is responsible for pumping blood throughout the body and does not produce blood cells.
• Option b: Lymph nodes are part of the lymphatic system and play a role in immune responses, not blood cell production.
• Option c: The liver has several functions, including detoxification and bile production. While the liver plays a role in erythropoiesis during fetal development, the bone marrow becomes the primary site of RBC production after birth.
• Option d: Bone marrow is the spongy tissue found inside bones and is the primary site of hematopoiesis (blood cell formation) in adults. It contains hematopoietic stem cells that differentiate into red blood cells, white blood cells, and platelets.

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A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. ap, ds, gv, ?

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A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. ap, ds, gv, ?

Ajx

Biy

Cjy

Div

Akhilesh ? Apr 8 '25 at 21:03

correct answer is: jy
Explanation: The series follows a pattern where each pair of letters increases by 3 in their alphabetical positions. The first letters are a(1), d(4), g(7), so the next is j(10). The second letters are p(16), s(19), v(22), so the next is y(25). Thus, the correct pair is jy.

• OPTION a : jx
  - Incorrect, as the second letter should be y, not x.
• OPTION b : iy
  - Incorrect, as the first letter should be j, not i.
• OPTION c : jy
  - Correct, as explained above.
• OPTION d : iv
  - Incorrect, as both letters are wrong.

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Find the greatest number by which the numbers 29, 43 and 71 when divide, leaves remainder 5, 7 and 11 respectively.

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Find the greatest number by which the numbers 29, 43 and 71 when divide, leaves remainder 5, 7 and 11 respectively.

A6

B12

C16

D18

Akhilesh ? Apr 8 '25 at 21:05

correct answer is: 12
Explanation: To find the greatest number that leaves remainders of 5, 7, and 11 when dividing 29, 43, and 71 respectively, we subtract the remainders from each dividend to get 24, 36, and 60. The greatest common divisor of these numbers is 12.

• OPTION a (6): 6 is a common divisor but not the greatest.
• OPTION b (12): 12 is the greatest common divisor.
• OPTION c (16): 16 does not divide 24, 36, or 60 exactly.
• OPTION d (18): 18 does not divide 24 exactly.

 

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The term 'Parthenogenesis' is related to ____.

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The term 'Parthenogenesis' is related to ____.

AGamete Formation

BPuberty

CAsexual reproduction

DHormone regularisation

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option c [Asexual reproduction]
Explanation: Parthenogenesis is a form of asexual reproduction where an egg develops into an embryo without being fertilized.

• Option a: Gamete formation is part of sexual reproduction, involving the creation of sperm and egg cells.
• Option b: Puberty is the period during which adolescents reach sexual maturity and become capable of reproduction. It's a developmental stage, not a reproductive process itself.
• Option c: Asexual reproduction is a mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it is reproduction which does not involve meiosis, ploidy reduction or fertilization. Parthenogenesis falls under this category.
• Option d: Hormone regulation is a physiological process, controlling various bodily functions, including reproduction, but is not the definition of parthenogenesis.

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Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: No phone are mobile. Some mobile are wire. Conclusions: I. Some wire are mobile. II. Some wire are not phone.

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Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements.

Statements: No phone are mobile. Some mobile are wire.

Conclusions:

I. Some wire are mobile.

II. Some wire are not phone.

ANone follows

BOnly conclusion II follows.

COnly conclusion I follow.

DBoth conclusions I and II follow

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option d : Both conclusions I and II follow
Explanation: Let's analyze each conclusion based on the given statements using Venn diagrams. The statement "No phone are mobile" means that the sets of phones and mobiles are disjoint (no overlap). The statement "Some mobile are wire" means that there is an overlap between the sets of mobiles and wires.

• Option I: Some wire are mobile: Since "Some mobile are wire," it directly implies that "Some wire are mobile." This conclusion is a direct consequence of the given statement, so it follows.
• Option II: Some wire are not phone: Since some wires are mobile, and no phones are mobile, it logically follows that these wires (which are mobile) cannot be phones. Hence, "Some wire are not phone" also follows.

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A sum of Rs. 50,000 is invested at simple interest at a rate of 15% for 2 years, what will be the simple interest on the sum?

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A sum of Rs. 50,000 is invested at simple interest at a rate of 15% for 2 years, what will be the simple interest on the sum?

ARs. 12,000

BRs. 7,500

CRs. 22,500

DRs. 15,000

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option d [Rs. 15,000]
Explanation: The simple interest (SI) is calculated using the formula: SI = (P * R * T) / 100, where P is the principal amount, R is the rate of interest, and T is the time period. In this case, P = Rs. 50,000, R = 15%, and T = 2 years. Therefore, SI = (50000 * 15 * 2) / 100 = Rs. 15,000.

• Option a: Rs. 12,000 is incorrect because it's not the result of the correct calculation (50000 * 15 * 2) / 100.
• Option b: Rs. 7,500 is incorrect because it's half of the correct simple interest amount. It is likely calculated for one year only (50000 * 15 * 1) / 100.
• Option c: Rs. 22,500 is incorrect because it's not the correct result of the simple interest calculation with the provided principal, rate, and time.

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Jelly Fish belongs to the phylum ____.

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Jelly Fish belongs to the phylum ____.

ACnidaria

BPorifera

CMollusca

DChordata

Akhilesh ? Apr 7 '25 at 21:52

correct answer is: option a : Cnidaria
Explanation: Jellyfish belong to the phylum Cnidaria. Cnidarians are characterized by the presence of specialized cells called cnidocytes, which contain stinging organelles called nematocysts. These are used for capturing prey and defense. Jellyfish exhibit radial symmetry and possess a simple body plan consisting of a bell-shaped body and tentacles.

• Option a: Cnidaria is the correct answer because jellyfish possess the defining characteristics of this phylum, including cnidocytes and radial symmetry.
• Option b: Porifera (sponges) are characterized by having pores and lacking true tissues or organs, which is not applicable to jellyfish.
• Option c: Mollusca includes animals like snails, clams, and squids, which have a different body plan and characteristics than jellyfish.
• Option d: Chordata includes animals with a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail at some point in their development, which is not applicable to jellyfish.

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Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: All pen are page. No page are paper. Conclusions: I. Some pages are pen. II. Some pen are paper.

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Directions: In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: All pen are page. No page are paper. Conclusions: I. Some pages are pen. II. Some pen are paper.

AOnly conclusion I follows.

BOnly conclusion II follows

CBoth conclusions I and II follow

DNone follows

Akhilesh ? Apr 7 '25 at 21:51

correct answer is: option a (a)[Only conclusion I follows.]
Explanation: Let's analyze the statements and conclusions using a Venn diagram approach.
Statements:
1. All pens are pages. This means the entire circle representing "pens" is inside the circle representing "pages".
2. No page is paper. This means the circles representing "pages" and "papers" do not intersect at all.
Conclusions:
I. Some pages are pen. Since all pens are pages, it logically follows that some pages are pens. This is a valid conclusion.
II. Some pen are paper. Since no pages are papers, and all pens are pages, it follows that no pens can be papers. Thus, this conclusion is invalid.

• Option a: Only conclusion I follows. This is the correct option as conclusion I is valid and conclusion II is not.
• Option b: Only conclusion II follows. This is incorrect as conclusion II is not valid.
• Option c: Both conclusions I and II follow. This is incorrect as conclusion II is not valid.
• Option d: None follows. This is incorrect as conclusion I is valid.

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Which least number should be subtracted from the number 6846 so that the number will be completely divisible by 6, 8 and 12?

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Which least number should be subtracted from the number 6846 so that the number will be completely divisible by 6, 8 and 12?

A4

B6

C8

D9

Akhilesh ? Apr 7 '25 at 21:51

correct answer is: option b (6)
Explanation: To find the least number to be subtracted from 6846 to make it divisible by 6, 8, and 12, we first need to find the Least Common Multiple (LCM) of 6, 8, and 12. Then, we divide 6846 by the LCM and find the remainder. That remainder is the number to be subtracted.

• Option a: 4 is incorrect because 6846 - 4 = 6842, which is not divisible by the LCM (24).
• Option b: 6 is correct. The LCM of 6, 8 and 12 is 24. Dividing 6846 by 24, we get a quotient of 285 and a remainder of 6. So, if we subtract 6 from 6846, we get 6840, which is divisible by 24.
• Option c: 8 is incorrect because 6846 - 8 = 6838, which is not divisible by the LCM (24).
• Option d: 9 is incorrect because 6846 - 9 = 6837, which is not divisible by the LCM (24).

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