The marked price of a watch was $ 720. A man bought the same for $. 550.80 after getting two successive discounts, the first being 10%. What was the second rate ?
Options (1) 12% (2) 1.4% (3) 15% (4) 18%
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Yes, it is 15%.
Here is the calculation.
He paid 550.8
648-550.8=$97.2 second discount
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720(1 - 0.10)(1 - 0.15) = 720x0.90x0.85 = 550.80
The discount was 15%, so the answer is (3)
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