Que 1.) A radio was sold for Rs 680/- at 15% loss. If he wanted to sell it for 10% profit, what should be the selling price of that radio?
Ans From the condition of the problem
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The selling price of the Radio = Rs 680 /-
Loss = 15 %
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Loss = Cost price - Selling price
Therefore,
15 = 100 - x
x = 100 - 15
x = 85
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Now,
Loss = 15%
Selling price = Rs 680 = 85 %
Therefore,
Cost price = 100%
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85 ---------------- 680
100 ---------------- ?
680 x 100
? = --------------------------
85
= 100
-------- x 680
85
20
= ------- x 680
17
= 20 x 40
= 800
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The cost price of the Radio was Rs 800/-
Also we need to sell it for 10% profit.
110 ---------------- ?
100 ---------------- 800
800 x 110
? = --------------------------
100
= 8 x 110
= 880
Ans - The Radio should be sold for Rs 880/- to earn 10% profit.
