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Simple & Compound Interest Quiz || DUJAT 2021 || 24 September

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Question 1

A certain sum invested at 6% per annum compound interest, compounded half-yearly, amounts to Rs 7956.75 after the end of one year. The sum is?

Question 2

Out of a sum of Rs. 640/- a part was lent at 6% simple interest and the other at 9% simple interest. If the interest on the first part after 3 years is equal to the interest on the second part after 6 years, then what is the second part?

Question 3

A sum of money becomes Rs. 17280 in 2 years and Rs. 20736 in 3 years at compound interest compounded annually. Find the sum.

Question 4

The compound interest on a certain sum of money at a certain rate per annum for two years is ₹ 2,050, and the simple interest on the same amount of money at the same rate for 3 years is ₹ 3, 000. Then the sum of money is

Question 5

The simple and compound interest that can be earned in two years at the same rate is Rs 4000 and Rs 4180 respectively. What is the rate (percent per annum) of interest?

Question 6

A sum doubles itself in 6 yr at compound interest. In how much time the sum will be eight times at the same rate of interest?

Question 7

If time (in years) is equal to the rate(in percentage) and interest is equal to the principal at simple interest. What is the rate %?

Question 8

A sum of money invested at compound interest doubles itself in 6 years. At the same rate of interest, it will amount to eight times of itself in how many years?

Question 9

If x, y, z are three sums of money such that y is the simple Interest on x and z is the simple interest on y for the same time and at the same rate of interest, then the relationship between x,y & z will be?

Question 10

In how many years will the simple interest on a sum of money be equal to the principal at the rate of 50/3 % per annum ?
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