Question

By selling an article for Rs.900; a man gains 20%. Find his cost price and the gain.

Answer 1

S.P. of an article = Rs.900

Gain = 20%

C.P. =`100/((100+"Gain"%))xx"S.P."`

∴ C.P. =`100/((100+20))xx"Rs."900`

= Rs.`100/120xx900`

= Rs.`9000/12`

Gain = S.P. − C.P.

= Rs.900 − Rs.750

= Rs.150