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Simple Interest || 26.04.2021

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Question 1

A man takes a loan of some amount at some rate of simple interest. After three years, the loan amount is doubled and rate of interest is decreased by 2%. After 5 years, if the total interest paid on the whole is ₹13,600, which is equal to the same when the first amount was taken for   years, then the loan taken initially is:

Question 2

A sum of money amounts to Rs.9800 after 5 years and Rs.12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

Question 3

In how much time will the simple interest on a certain sum of money be  times of the sum at 20% per annum?

Question 4

In how many years, will a sum of Rs. 5,000 yield a simple interest of Rs. 2,000 at an interest rate of 10% p.a.?

Question 5

A sum of Rs.400 amounts to Rs.480 in 4 years. What will it amount to if the rate of interest is increased by 2 % for the same time?

Question 6

If the total simple interest on a sum of ₹1,400 for 4 years at rate of interest x% p.a. and on the same sum for two years at the same rate is ₹672, then the value of x is:

Question 7

Manali, deposits 1350 rupees in a bank at 5% per annum, and 1150 in another bank at 6% per annum. Find the rate of simple interest for the whole sum?

Question 8

A sum of money becomes double in 8 years at a rate of simple interest per annum. In how many years it will become 9/4th of itself?

Question 9

At simple interest, in how many years Rs 150 will produce the same interest at 8% as Rs. 800 produce in 3 years at 9/2%

Question 10

A person invested a sum of Rs.10,500 at x% per annum at simple interest and a sum of Rs.13,500 at (x + 2)% p.a. at simple interest. If the total interest earned on both the investments for 3 years is Rs. 7,650, then the rate of interest on the first investment is:
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