Question

A man buys a book for Rs 80 anf sells it for Rs. 100 find his gain percentage?

Answer 1

cp of book is 80
sp of book is 100
profit is equal to 20
thus profit percentage will be
% = (profit/cp)×100
thus answer(profit%) is 25%

Answer 2

$\color{orange}\large{Hi \: Buddy!}$
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➡️ Gain = SP - CP

➡️ Gain = ₹100 - 80

➡️ Gain = ₹20

Now, gain/cp × 100

➡️ 20/80 × 100

⏩ 25% Gain

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