Question

If the cost of 20 books is equal to the selling price of 25 books find the gain or loss per cent.


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Answer 1

Let the cp = ₹20

and the sp = ₹ 25

then the gain (25 - 20 )

= ₹ 5

now gain % = 5/20 × 100

= 25 %

Answer 2

$\huge\color{Cyan}\boxed{\colorbox{black}{20 \%}}$