Question

a certain sum amount to rupees 79 8.60 after 3 years and rupees 87 8.46 after 4 years find the interest of the sum

Answer 1

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Here is the solution:

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Find the interest for one year:

878.46 - 798.60 = Rs 79.86

Find the interest for 4 year:

79.86 x 4 = Rs 319.44

Find the original amount invested:

878.46 - Rs 319.44 = Rs 559.02

Answer: The amount invested is Rs 559.02 and the total interest earned in the 4 years is Rs 319.44

Answer 2

$\bold {\huge {Solutions :-}}$

The interest for one year =>>>

$\bold {878.46 ~- ~798.60~ =~Rs~79.86}$

$\bold {Now, }$

The interest for 4 year =>>>>

$\bold {79.86 }$× $\bold {4~=~ Rs~319.44}$

The original amount invested =>>>>

$\bold {878.46~ -~ Rs ~319.44~ =~ Rs~ 559.02}$

$\bold {Hence, }$

The amount invested is $\bold { Rs~559.02}$
And the total interest earned in the $\bold {4~years }$ is $\bold {Rs~319.44}$ $\bold {ANSWER }$