Mathematics quiz on Simple Interest and Compound Interest (16-10-2020)

Mr. Shane invested total amount of Rs. 16500 for two year in two schemes X and Y. under scheme X, the simple interest rate was 10 percent per annum and under scheme Y, the simple interest rate was 12 percent per annum. If the total amount of interest earned Rs. 3620, what was the amount invested in scheme Y?

Rohan takes loan of 5,000 on the condition that he would pay it in the monthly instalment of 500. He has to pay interest @  6% on the outstanding balances, then find out the average rate of interest received by the creditor.

The simple interest calculated on same amount at rate of interest 25% for 3 years is Rs. _____ and simple interest at 15% p.a. for 2 years is Rs. 8400. The difference between interest is______

Simple interest on certain sum is Rs. 26640 is calculated at the rate of interest 24% for 3 years. The certain sum is Rs. _____. In ______ years same amount of sum at 15% p.a. become Rs. 81400.

Sunaina lent Rs. 9,800 to Mohini for 4 years and Rs. 8,800 to Mitali for 6 years on simple interest at the same rate of interest and received Rs. 11,040 in all from both as interest. The rate of interest per annum is

Mr. A borrows Rs. 75,000 for 2 years at 3% per annum simple interest. He immediately lends it to Mr. B at 5.5% p.a. for 2 years at simple interest. How much did Mr. A gain in the transaction?

Find the sum, if the difference between the compound interest and the simple interest on a sum of money for 4 years at 20% per annum is Rs 400.

Saurabh invest Rs. 2,50,000 in simple interest at the rate of 10% p.a. for 3 years. If the same amount is invested in the scheme of compound, considering the all the data same, what is the difference between the simple interest and compound interest?

Find the interest that Rs. 8030 will incur from 20^th Feb to 10^th April [both days inclusive] in a non- leap year at the rate of 8% p.a. simple interest?

The amount of Rs. 8,000 is given at an annual rate of 8% on ordinary interest. If the amount was withdrawn after 5 years and half of the total amount was invested in the stock market, then tell the amount remaining (in rupee).