S Chand ICSE Mathematics Class 9 Solution Second Chapter Compound Interest Exercise 2C (O.P. Malhotra, S.K. Gupta, Anubhuti Gangal)

S Chand ICSE Mathematics Class 9 Solution Second Chapter Compound Interest Exercise 2C

(1) What amount of money should Mohan invest in a bank in order to get Rs. 1323 in 2 years at 5% compounded annually?

(2) Find the sum which amount to Rs. 1352 in 2 years at 4% compound interest.

(3) What principal will amount to Rs. 9768 in two years, if the rates of interest for the successive years are 10% p.a. and 11% p.a. respectively.

(4) On what sum of money does the difference between the simple interest and compound interest in 2 years at 5% per annum is Rs. 15?

Solution:

(5) The difference between simple and compound interest on the same sum of money at 6 and 2/3% for 3 years is Rs. 184. Determine the sum.

(6) On what sum of money will the difference between the simple interest and the compound interest for 2 years at 5% per annum be equal to Rs. 50?

Solution:

(7) Find the rate per cent per annum, if compounded yearly

(i) Principal = Rs. 196, Amount = Rs. 225, time = 2 years.

(ii) Principal = Rs. 3136, Compound Interest  = Rs. 345, Time = 2 years.

Solution:

(8) Hari purchased Relief Bonds for Rs. 1000, a sum which will fetch him Rs. 2000 after 5 years. Find the rate of interest is compounded half yearly.

(9) Rs. 8000 became Rs. 9261 in a certain interval od time at the rate of 5% per annum, C.I. Find the time.

(10) In how many years will a sum of Rs. 3000 at 20% per annum compounded semi annually become Rs. 3993?

Solution:

(11) A sum of money put out at compound interest amounts in 2 years to Rs. 578.40 and in 3 years to Rs. 614.55. Find the rate of interest.

(12) A sum compounded annually becomes 25/16 times of itself in 2 years. Determine the rate of interest per annum.

Solution:

____ x ____

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  1. Check your 10th question is wrong

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