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Question 134
If on a marked price, the difference of selling prices with a discount of 30% and two successive discounts of 20% and 10%is Rs. 72, then the marked price (in rupees) is:
Solution
let's say marked price 100
so for first discount of 30% selling price will be 70
and for two successive discounts of 20% and 10% selling price will be 72 and difference will be 2
now when difference between both selling prices is 2, marked price is 100
so when difference between both selling prices is 72, marked price will be $$\frac{100}{2} \times 72$$ = 3600
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