At what rate per cent compound interest does a sum of money become 16 times in 4 years?

English

Gujarati

Hindi

6.Interest

medium

At what rate per cent compound interest does a sum of money become $16$ times in $4$ years?

A

$75$

B

$100$

C

$50$

D

None of these

Solution

(b) The required rate per cent is

$R=100\left[(n)^{1 / t}-1\right]=100\left[(16)^{1 / 4}-1\right]$

[Here, $n=16$ and $t=4]$

$=100(2-1)=100 \%$

Standard 13

Quantitative Aptitude

Share

Similar Questions

The difference between the compound interest and the simple interest on ₹ $8000$ for $3$ years at $5 \%$ per annum is (In ₹)

medium

On a sum of money, the simple interest for $2$ $years$ is ₹ $660$, while the compound interest is ₹ $696.30$, the rate of interest being the same in both the cases. The rate of interest (In $\%$) is

medium

The population of a country is $10$ crore and it is the possibility that the population will become $13.31$ crore in $3$ years. What will be the annual rate per cent of this growth?

hard

The compound interest (In ₹) on ₹ $10000$ at $20 \%$ per annum at the end of $1$ year $6$ months if the interest is calculated half-yearly will be

medium

If the ratio of $C.I. \& S.I.$ interest for the same principal and rate of interest for $2$ years is $1.2,$ find the rate of interest (In $\%$)

hard