 ## A certain sum of money, when deposited in a post office, becomes of itself in 8 years. A sum deposi….

A certain sum of money, when deposited in a post office, becomes of itself in 8 years. A sum deposited as a fixed deposit in a bank doubles itself in 12.5 years. What is the difference between the rates of interest offered by the post office and the bank?...

## Raghav has to repay a loan of Rs. 12,820 in three annual instalments. The first instalment is to be ….

Raghav has to repay a loan of Rs. 12,820 in three annual instalments. The first instalment is to be half of the second and one-third of the third. If the compound interest is calculated annually at a rate of 10%, then find the value of the third instalment that...

## A sum of money is accumulating at compound interest at a certain rate. If simple interest instead of….

A sum of money is accumulating at compound interest at a certain rate. If simple interest instead of compound was reckoned, the interest for the first two years would be diminished by Rs. 20 and that for the first three years by Rs. 61. Find the sum.

## A lent B Rs. 900 for a certain time at a certain rate per annum, which was equal to the square root ….

A lent B Rs. 900 for a certain time at a certain rate per annum, which was equal to the square root of the number of months of time. After the time, B wanted to return the money, but A instead of taking the interest, which amounted to Rs....

## A tractor is sold for Rs. 4,50,000 or Rs. 1,50,000 cash down together with ten equal monthly instalm….

A tractor is sold for Rs. 4,50,000 or Rs. 1,50,000 cash down together with ten equal monthly instalments of Rs. 32,000 each. Find the rate of interest charged under the investment plan.

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## X invested a sum at compound interest payable half-yearly. If the compound interest in November 2003….

X invested a sum at compound interest payable half-yearly. If the compound interest in November 2003 was Rs. 225 and in May 2004, it was Rs. 236.25, find the annual rate of interest.

## Amit invested two equal sums of Rs. 5000 for 2 years at 10%, one at compound interest payable yearly….

Amit invested two equal sums of Rs. 5000 for 2 years at 10%, one at compound interest payable yearly and the other at compound interest payable half-yearly. Find the difference between amounts that he will get at the end of 2 years.

## From a certain sum, is invested at 4%, at 5% and the rest at 10%. If the simple interest for 3 yea….

From a certain sum, is invested at 4%, at 5% and the rest at 10%. If the simple interest for 3 years on all these investments amounts to Rs. 900, then find the original sum.

## A sum of money lent out at simple interest amounts to Rs. 680 after 3 years and to Rs. 980 after fur….

A sum of money lent out at simple interest amounts to Rs. 680 after 3 years and to Rs. 980 after further 5 years. Find the rate of interest.

## Nishit deposited a certain sum of money in the post office at 10% p.a. for 4 years and deposited an ….

Nishit deposited a certain sum of money in the post office at 10% p.a. for 4 years and deposited an equal amount in a fixed deposit in the bank for 5.5 years at 11% p.a. If the difference in the interests from the two sources is Rs. 563.75, then...

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