The sum of Rs. 1020 will amount Rs. 1530 at 5% per annum simple interest in

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RRB TC CC Exam (Patna) 2006 click here to view all questions

The sum of Rs. 1020 will amount Rs. 1530 at 5% per annum simple interest in

Aa) 8 years

Bb) 12 years

Cc) 10 years

Dd) 14 years

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Answer is: 10 years Formula: $P = \frac{(100 * A)}{(100+RT)}$ where P =1020 , A=1530, R=5% ,T=? 1020 =$\frac{(100 *1530)}{(100+5T)}$ 1020 (100+5T) = 153000 100+5T = $\frac{153000}{1020}$ 100 +5T = 150 5T = 150-100 T = $\frac{50}{5}$ T = 10 So Time is 10 years Akilesh Kharvi ? answered Nov 5 '2016 at 13:46 All Comments

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