Question

at what rate percent per annum will the interest onRs.1305 amount toRs.1740in 4 months.solve this proble

Answer 1

P=RS 1305
A=RS 1740
S.I.=A-P=1740-1305=RS435
T=4 MONTHS = 4/12 YRS = 1/3 YRS
R% = ?
R% = 100×S.I./P×T
= 100×435×3/1305×1
= 100%

Answer 2

The rate of interest is 100%

Explanation:

Given: An amount of Rs. 1305 becomes Rs. 1740 in 4 months.

To find: Rate of interest

Solution:

We have, Principal amount$=1305$, Amount$=1740$, Time$=4$ months or $\frac{1}{3}$ years

Now, Interest of $\frac{1}{3}$ years $=1740-1305=435$

Let the rate of interest be R%

Here, $P=1305$, $I=435$, $T=\frac{1}{3}$

Also, we know that

$I=\frac{P\times R\times T}{100}$

$\implies 435=\frac{1305\times R}{100\times 3}$

$\implies R=\frac{435\times 100\times 3}{1305}$

$\imples R=100$%

Hence, rate of interest is 100%

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Rate of interest

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