Q. 26 A sum of Rs 15000 is invested partly at 12% per annum and the remaining at 10% per annum simple interest. If the total interest at the end of 2 years is Rs 3344. How much money was invested at 10% per annum?

Q. 29 A sum amounts of Rs 8028 in 3 years and to Rs 12, 042 in 6 years at a certain rate per cent per annum, when the interest is compounded yearly. The sum is

Q. 30 What is the difference between the compound interest, when interest is compounded 5 monthly and the simple interest on a sum of Rs 12, 000 for 1(1/4) year at 12% per annum?

Q. 31 Rs 2, 40, 000 is taken as loan for three years compounded annually at 12.5% p.a. At the end of the first year, the interest is revised to 12% p.a. The total amount to be repaid at the end of third year is

Q. 32 What is the rate of interest if the simple interest earned on a certain sum for the 3 years is Rs 6, 000 and compound interest earned for 2 years is Rs 4, 160?

Q. 35 Rs 260200 is divided between Ram and Shyam so that the amount that Ram receives in 4 years is the same as that Shyam receives in 6 years. If the interest is compounded annually at the rate of 4% per annum, then Ram’s share is

Q. 38 An investor invested his saving in the stock market. The value of his investments increased by 12% and 9% in the first year and the second year respectively. If the value of his investment after two years became Rs 97, 664 then how much had he invested?

Answer: (C) Rs 80000 Explanation: Let the investment = Rs x According to the question, x(1 + 12/100)(1 + 9/100) = 97, 664 Solving, x = 80, 000

Q. 39 Ramesh borrowed a sum at 5 per annum simple interest from Rahul. He returns the amount after 5 years. Rahul returns 2% of the total amount received. How much did Ramesh borrowed if he received Rs 5?

Q. 40 The simple interest on a sum of money is (8/25) of the sum. If the number of years is numerically half the rate per cent per annum, then the rate per cent per annum is