Question

Find C.P if S.P = ₹500, Gain = 5%
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Answer 1

$sp \: is \: 500 \: and \: gain \: is \: 5\% \: it \: means \\ \: sp \: = 105\% \: of \: cp .............1\\ let \: cp \: be \: x.............2 \\ according \: to \: equation \: 1 \: \: and \: 2 \\ = \frac{105 \times x}{100} = 500 \\ = > \frac{105x}{100} = 500 \\ = > 105x = 50000 \\ = > x = \frac{50000}{105 } \\ = > x = 476.190$

Answer 2

let CP be x

Then, SP=105%

=> 500=105*x

100

=> 500=105x

100

by cross mulplication :-

=> 50000=105x

=> 50000=x

105

=> 476.190=x

=> x=476.190