Simple Interest Questions and Answers - Simple Interest Formula

The rate of simple interest annum of bank being decreased from 5 % to 3.5 %, the annual income of a person from interest was less by  ₹ 105. The sum deposited at the bank was 

A sum was invested on simple interest at a certain rate for 2 years. Had it been put at 3 % higher. rate, it would have fetched ₹ 72 more. The sum is 

If a certain sum of money become thrice of itself in 5 years 4 months at simple interest, then what will be the yearly rate of interest (in %)? 

A money lender finds that due to fall in the annual rate of interest 8% to ,his yearly income diminishes by ₹ 61.50. His capital is

A certain sum of money lent out at simple interest amounts to Rs. 2400 in 4 years and Rs. 3000 in 6 years. Find the rate of interest per annum?

A man invested Rs.25000 on simple interest at R% p.a. If interest received by man is three twentieth of the principal after three years, then find ‘R’?

Varun invested Rs. X at the rate of 8 % per annum for five years and obtained total simple interest of Rs. 5000. Had he invested the same amount at the same rate of interest for two years, then how much amount would he have obtained as compound interest (compound annually)?

Ravi invested Rs 18000 in scheme ‘A’ which offers 15% p.a. at simple interest and Rs 15000 in scheme ‘B’ which offers 18% p.a at compound interest. Find the difference between the interest earn rom these two schemes after two years?

The simple interest on a certain sum at 15% per annum for 5 year is Rs1500 more to the simple interest on the same at 12% per annum for the same period. Find the sum-

Simple interest on a certain sum at the rate of 8% per annum after three years will be Rs.14400. Find the compound interest on that sum at the rate of 12% per annum after 2 years.