1. The marked price of a watch was Rs.720. A man bought the same for Rs. 550.80 after getting two successive discounts, the first being 10%. The second discount rate is
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By: anil on 05 May 2019 01.51 am
Marked price = 720 After 1st discount of 10% => 10% of 720 = $$frac{10}{100}$$ * 720 = 72 Amount payable = 720 - 72 = 648 Let 2nd discount = $$x$$% After 2nd discount of $$x$$% => $$x$$% of 648 = $$frac{x}{100} * 648 = 6.48x$$ => Customer will pay = 648 - $$6.48x$$ = 550.80 => $$6.48x$$ = 97.2 => $$x$$ = 15%
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