Instructions

Instructions: Each of the following questions consists of a question followed by three statements I, II and III. You have to study the question and the statements and decide which of the statement (s) is/are necessary to answer the question.

Question 99

Sri Gupta borrowed a sum at compound interest. What is the amount returned in 2 years?
I. The rate of interest is 5% per annum.
II. The simple interest incurred on the sum in 1 year is Rs600.
III. The borrowed sum is ten times the amount earned as simple interest in two years.

Solution

SI in 1 year = 600

for two years = 1200

Sum = 10 x 1200 = 12000

600 = 12000*r*1/100

r = 5%

Amount returned in two years = 12000(1 + $$\frac{5}{100}$$)2 = 13230


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