Question
A sold a mobile phone to B at a gain of 25% and B sold
it to Cat a loss of 10%. If C paid 5625 for it, how much did A pay (in) for the phone?Solution
Let, the A paid for the mobile phone = x So, x × (125/100) × (90/100) = 5625 ⇒ x = 5625 × (100/125) × (100/90) ⇒ x = 5000 ∴ A paid Rs. 5000 (in Rs.) for the phone
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