If 6 x 5 = 64, 8 x 7 = 116 and 10 x 7 = 144 then 11 x 10 = ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

If 6 x 5 = 64, 8 x 7 = 116 and 10 x 7 = 144 then 11 x 10 = ?

A224

B242

C243

D222

Akhilesh ? Apr 6 '25 at 07:29

correct answer is: 224
Explanation: The pattern in the given equations follows the formula: result = 2 × (a × b) + 4. Applying this to 11 × 10: 2 × (11 × 10) + 4 = 2 × 110 + 4 = 224.

• OPTION a (224): Matches the calculated result.
• OPTION b (242): Too high.
• OPTION c (243): Too high.
• OPTION d (222): Too low.

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Select the related number from the given alternative? 35 : 75 :: 48 : ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

Select the related number from the given alternative? 35 : 75 :: 48 : ?

A101

B102

C103

D104

Akhilesh ? Apr 6 '25 at 07:32

correct answer is: 101
Explanation: The pattern observed is that each number is multiplied by 2 and then 5 is added. Applying this to 48: 48 × 2 + 5 = 101.

• OPTION a (101): Correct, as explained.
• OPTION b (102): Incorrect, does not fit the pattern.
• OPTION c (103): Incorrect, does not fit the pattern.
• OPTION d (104): Incorrect, does not fit the pattern.

 

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A series is given, with one term is missing. Select the correct alternative from the given ones that will complete the series? ZFK, YGL, XHM, WIN, ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

A series is given, with one term is missing. Select the correct alternative from the given ones that will complete the series? ZFK, YGL, XHM, WIN, ?

AUJO

BUKL

CVJP

DVJO

Akhilesh ? Apr 4 '25 at 22:11

correct answer is: option d : VJO
Explanation: The pattern follows a decreasing alphabetical order for the first letter and an increasing alphabetical order for the second and third letters. Let's analyze:

• Z, Y, X, W, V (first letters decreasing)
• F, G, H, I, J (second letters increasing)
• K, L, M, N, O (third letters increasing)

Therefore, the next term should be VJO.

• Option a : UJO: Incorrect, U is not following the decreasing first letter pattern.
• Option b : UKL: Incorrect, U and L are not following the pattern.
• Option c : VJP: Incorrect, P is not following the pattern of increasing last letter.

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Find the missing number in the given series? 3, 11, 27, 59, ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

Find the missing number in the given series? 3, 11, 27, 59, ?

A123

B121

C134

D113

Akhilesh ? Apr 4 '25 at 22:11

correct answer is: option a (123)
Explanation: The pattern in the series is as follows: Each number is obtained by multiplying the previous number by 2 and adding a consecutive odd number starting from 5.
3 * 2 + 5 = 11
11 * 2 + 5 = 27
27 * 2 + 5 = 59
3, 11, 27, 59, 123,...
*2+5 *2+5 *2+5 *2+5 Therefore, the next number is 59 * 2 + 5 = 123

• Option a: 119. 59*2 + 5 = 123, is the correct pattern
• Option b: 121. Incorrect following by pattern
• Option c: 134. Incorrect following by pattern
• Option d: 113. Incorrect following by pattern

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Find the missing number in the given series? 4, 16, 40, ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

Find the missing number in the given series? 4, 16, 40, ?

A87

B88

C89

D90

Akhilesh ? Apr 4 '25 at 22:11

correct answer is: option b (88)
Explanation: The pattern in the series is as follows: The difference between consecutive numbers increases by multiples of 12.
16 - 4 = 12
40 - 16 = 24 (12 * 2)
So the next difference should be 12 * 3 = 36.
Therefore, the next number is 40 + 36 = 76 + 12=88

• Option a: 87 is incorrect because it does not follow the established pattern of differences increasing by multiples of 12.
• Option b: 88 is correct because 40 + (12*3) = 40 + 36 = 76. So, the number is 40+48=88
• Option c: 89 is incorrect because it does not follow the established pattern of differences increasing by multiples of 12.
• Option d: 90 is incorrect because it does not follow the established pattern of differences increasing by multiples of 12.

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FIFA Football World Cup of 2022 will be hosted by ___________.

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RRB NTPC Exam 27 Jan 2021 click here to view all questions

FIFA Football World Cup of 2022 will be hosted by ___________.

AUSA

BUAE

CQatar

DRussia

Akhilesh ? Mar 28 '25 at 22:18

correct answer is: Qatar
Explanation: The 2022 FIFA World Cup was hosted by Qatar. This decision was made by FIFA, and it was notable for being the first time the tournament was held in the Middle East. The selection was controversial due to concerns about human rights and the climate.

• OPTION A (USA): The USA is co-hosting the 2026 FIFA World Cup with Canada and Mexico, not in 2022.
• OPTION B (UAE): The UAE has not been announced as a host for any FIFA World Cup.
• OPTION D (Russia): Russia hosted the 2018 FIFA World Cup, not the 2022 edition.

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If 'MINISTER' can be coded as 'RETSINIM', then how would you code 'PRESIDENT'?

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RRB NTPC Exam 27 Jan 2021 click here to view all questions

If 'MINISTER' can be coded as 'RETSINIM', then how would you code 'PRESIDENT'?

ASIPRETNED

BTNEDISERP

CPREDENTSI

DTNEDIPRES

Akhilesh ? Mar 28 '25 at 22:29

correct answer is: TNEDISERP
Explanation: The coding method involves reversing the letters of the word. 'MINISTER' reversed is 'RETSINIM', so applying the same method to 'PRESIDENT' results in 'TNEDISERP'.

• OPTION a (SIPRETNED): Incorrect, as it does not follow the reversal pattern.
• OPTION b (TNEDISERP): Correct, as it is the exact reversal of 'PRESIDENT'.
• OPTION c (PREDENTSI): Incorrect, does not match the reversal.
• OPTION d (TNEDIPRES): Incorrect, incorrect letters arrangement.

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