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Aptitude

Aptitude Questions and Answers

Showing 1 - 2 of 2 questions
1

The rate at which a sum becomes four times of itself in 25 years at S.I.,will be:

a

30%

b

25%

c

12%

d

49%

correct answer c

Let sum = x. Then, S.I. = 3x

Rate = `[100 ** (S.I.) / P**T] %`

= `[100 ** (3x) / x ** 25]% = 12%`

2

What annual installment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?

a

325

b

545

c

560

d

550

correct answer a

Let each instalment be Rs.x .

Then, `[x + (x ** 12 ** 1)/100] + [ x + (x **12 ** 2)/100] + x =1092`

 `( (28x)/25 ) + ( (31x)/25 ) + x = 1092`

 `(28x + 31x + 25x) = (1092 ** 25)`

 `x = (1092 ** 25)/84= 325`

Each instalment = Rs. 325

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