1.

The present price of car is Rs.7290/-. If its value decreased every year by 10%, then its value three years back was (1) Rs.11,500/- (2) Rs.10,500/- (3) Rs.10,000/- (4) Rs.8,000/-

Answer»

(3) Rs.10,000/-

7290 = x (1 - 10/100)3

7290 = x (9/10)3

7290 x 1000 / 729 = x

x = Rs. 10000



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