Question

A man buys a book for Rs 180 and sell Rs 220. Find his gain%?

Answer 1

Gain = Rs.(220-180)

        = Rs. 40

So, gain% = (40/180)*100 %

                = (2*100/9)%

                = (200/9)%

                = 22+(2/9)%

(Ans): 22 whole of 2/9%.

Answer 2

Answer:

Gain % ≈ 22.22%

Explanation:

Given cost price of a book

=(c.p) = Rs 180

Selling price (s.p) = Rs 220

s.p > c.p

Therefore, he gets the profit.

Gain (g) = s.p - c.p

= Rs220 - Rs180

= Rs40

Now,

Gain percentage=[g×100]/c.p

= (40 × 100)/180

≈ 22.22%

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