1.

The value of an old bike decreases every year at the rate of 4% over that of the previour year. If its value at the end of three years is Rs 13824, then find its present value.A. Rs 15,625B. Rs 14,525C. Rs 16,625D. Rs 15,425

Answer» Correct Answer - A
Let P be the original value.
`P(1-4/100)^(3)=13,824`
`rArr P(1-1/25)^(3)=13,824`
`rArr P((25-1)/25) = 13,824`
`rArr P((24 xx 24 xx 24)/(25 xx 25 xx 25))=13, 824`.
`rArr P=25 xx 25 xx 25="Rs" 15,625`.


Discussion

No Comment Found

Related InterviewSolutions