squrt is equal to

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A0

B2√15

C2√10

D2

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One - seventh of a number is 51. What will be 64% of that

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One - seventh of a number is 51. What will be 64% of that number?

A248.12

B228.48

C238.24

D198.36

Nithin K ? Dec 4 '2016 at 13:33

Answer: 228.48

Explanation:

Let ‘x’ be the number

Then, x = 51 × 7 = 357

64% = 50% + 10% + 1% × 4

So, 64% of 357 = 178.5 + 35.7 + 14.28 = 228.48 

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What is the compound interest accrued on an amount of Rs.120 t

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What is the compound interest accrued on an amount of Rs.12000 at the rate of 9% per annum. At the end of 2 yr?

ARs.2545

BRs.2257.2

CRs.2986

DRs.2775.4

Nithin K ? Dec 4 '2016 at 10:55

Answer: Rs.2257.2

Explanation:

Formula:  \(C.I. = P \Big[ 1 + \frac{R}{100} \Big]^T -P\)

Where, P = 12000 , R =9, T =2

\(C.I. = 12000  \Big[ 1 + \frac{9}{100} \Big]^2 -12000 \)

= 12000 [1.1881] -12000

= 14257.2 - 12000

= Rs.2257.2

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Ms. Anisha deposits an amount of Rs.35000 to obtain a simpl

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Ms. Anisha deposits an amount of Rs.35000 to obtain a simple interest at the rate of 15% per annum for 4 yr. What total amount will Ms. Anisha get at the end of 4 yr?

ARs.56000

BRs.60500

CRs.52000

DRs.48500

Nithin K ? Dec 4 '2016 at 10:33

Answer: Rs.56000

Explanation:

Formula: \(Amount = P \Big\{a + \frac{TR}{100} \Big\}\)

\(Amount = 35000 \Big\{1+  \frac{4 \times 15}{100} \Big\} = 56000.\)

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If the product of two successive positive integers is 7482.

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If the product of two successive positive integers is 7482. Which is the greater integer?

A87

B82

C84

D89

Nithin K ? Dec 4 '2016 at 10:14

Answer : 87

Explanation:

Given that \(x(x+1)=7482\)
\(x^2+x=7482\)
\(x^2+x-7482=0 \)
Solve by quadratic equation 

\((x-87)(x+86)=0\)

\(\therefore x=87 \text{ or } x=-86\)

\(\because \text{ the integers are positive the negative option is disregarded. So the answer is 87.}\)

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A plot of 575 sq.ft is available at the rate of Rs.5500 per

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A plot of 575 sq.ft is available at the rate of Rs.5500 per sq.ft. If 25% of the total cost of the plot is to be paid for booking the plot. How much is the booking amount?

ARs.825750

BRs.790625

CRs.875250

DRs.735500

Nithin K ? Dec 4 '2016 at 9:53

Answer: Rs.790625

Explanation:

\(\text{Total cost of plot = Rs. 575} \times\text{ 5500 } = 3162500\)
\(\text{Booking amount =} \frac{3162500\times 25}{100}=258750\)
\(=Rs. 790625\)

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At simple interest a sum of Rs.64 becomes Rs.83.20 in 2 yr.

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At simple interest a sum of Rs.64 becomes Rs.83.20 in 2 yr. What will Rs.86 become in 4 yr at the same rate of interest?

ARs.129.40

BRs.137.60

CRs.142.30

DRs.144.80

Nithin K ? Dec 3 '2016 at 19:47

Answer : Rs.137.60

Explanation:

Formula:    \(S.I. = \frac{P \times T \times R}{100}\)

P=Rs. 64,

S.I. = Rs. (83.20 - 64) = Rs. 19.20,

T = 2 years.

So, rate R = \(\frac{SI \times 100}{P \times T}\)=\(\frac{ (100 \times 19.20 ) \% }{64 \times 2} = 15\%                       \)

Now, P = Rs.86, R= 15%, T = 4 years.

S.I. = \(\frac{Rs ( 86 \times 15 \times 14 )}{100} = Rs. 51.60                      \)

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