Question

Rajat sells a toy for ₹650, gaining 1/5
of its cost price. Find his cost price.

Answer 1

$\huge\red{ \bf{solution}} \\ \\ S.P. = 650 \\ let \: ,C.P \: is \: x \\ \: Gaining \: = \frac{1}{5} of \: C.P \\ \\ \red{\bf{we \: know \: that}} \\ \\ \implies \: S.P = C.P + gain \: \\ \\ \implies \: 650 = x + \frac{x}{5} \\ \\ \implies \: 650 = \frac{6x}{5} \\ \\ \implies \: 3250 = 6x \\ \\ \implies \: x = \frac{3250}{6} \\ \\ \implies \: x = 541.67 \\ \\ \bf{ cost \: prise \: is \: 541.67}$