True Discount - Arithmetic Aptitude Questions and Answers

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Goods were bought for Rs. 600 and sold the same for Rs. 688.50 at a credit of 9 months and thus gaining 2% The rate of interest per annum is:

16\(\frac { 2 } { 3 }\)%

14\(\frac { 1 } { 2 }\)%

13\(\frac { 1 } { 3 }\)%

15%

Answer : Option A

Explanation :

Now, P.W. = Rs. 612 and sum = Rs. 688.50.

T.D. = Rs. (688.50 - 612) = Rs. 76.50.

Thus, S.I. on Rs. 612 for 9 months is Rs. 76.50.

Rate =\([\frac { 100*76.50 } {612 *3/4} ]\)%=16\(\frac { 2 } { 3 }\)%

S.P. = 102% of Rs. 600 =		102	x 600		= Rs. 612.
		100

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