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When the price of a product was decreased by 10%, the number sold increased by 30%. What was the effect on total revenue?

0.21 increase

0.19 decrease

0.15 decrease

0.17 increase

Explanation:

Let the price of the product be Rs. 100 and let original sale be 100 pieces.
Then, Total Revenue = Rs. (100 × 100) = Rs. 10000
New revenue = Rs. (90 × 130) = Rs. 11700
%age Increase in Revenue = (11700 - 10000)/10000 * 100% = 1700/10000 * 100% = 17% = 0.17

By: Deepak Dawra

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