Question

by selling a. ook for rs 115.20, a man loses 10%. at what price should he sell it gain 5%

Answer 1

Find the cost price:

100 - 10 = 90%

90% = 115.20

1% = 115.20 ÷ 90 = 1.28

100% = 1.28 x 100 = Rs 128

Find the selling price:

5% profit = 0.05 x 128 = Rs 6.40

Selling Price = 128 + 6.40 = Rs 134.40

Answer: The selling price is Rs 134.40

Answer 2

Heya!!

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SP = ₹115.2
L% = 10%

Since SP = 100* SP/ (100-L%)

= 100*₹115.2/ (100-10)

= ₹11520/90

= ₹128

For second case:

CP= ₹128
P% = 5%

Since SP = CP* (100+ P%) / 100

= ₹128 (100+5) / 100

= ₹128 * 105 / 100

= ₹134.4

Hope it helps uh!!