1.

P sold a pen each to Q and R at 10% and 20% profits, respectively. Q sold pen to S at 15% profit. At what profit should R sell the pen to S so that S would have bought both pens at same price? (in %)1). 5.422). 6.163). 6.674). 7.2

Answer»

<P>P sold a pen each to Q and R at 10% and 20% PROFITS, respectively.

We know, Selling PRICE = Cost Price × (1 + Profit Percentage/100)

Cost price for S from Q = Cost price of P × (1 + 10/100) × (1 + 15/100) = 1.265 × cost price of P

For R to sell to S at same price, let profit percentage be T%.

⇒ Cost price of P × (1 + 20/100) × (1 + T/100) = 1.265 × cost price of P

⇒ T = 5.42

∴ Profit should be 5.42%.



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