Question
CSATMediumPrelims 2016Maths

A person allows a 10% discount for cash payment from the marked price of a toy and still he makes a 10% gain. What is the cost price of the toy which is marked Rs. 770770?

Explanation

Given: Marked price of the toy = Rs. 770770. Discount = 1010%. Gain = 1010%.

Step-by-Step Calculation: Selling Price (SP) after discount: Discount = 1010% of 770=0.10×770=770 = 0.10 \times 770 = Rs. 7777. Selling price = Marked price - Discount = 77077=770 - 77 = Rs. 693693.

Relation between Selling Price, Cost Price (CP), and Gain: Gain = 1010% of CP. SP = CP + Gain. So, 693=693 = CP +0.10×+ 0.10 \times CP.

Solving for CP: 693=1.10×693 = 1.10 \times CP. CP = 693/1.10=693 / 1.10 = Rs. 630630.

Maths PYQs from 2016

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