Question

A shopkeeper buys rs 50 per ream at what price per quire should he sel l it to gain 20%

Answer 1

cp=50
gain%=20
sp=?
sp= cp×gain%
sp= 50×120/100
sp=5×12=60rs is answer

Answer 2

20%=((s.p-c.p)/c.p)*100

20=((s.p-50)/50)*100

20=(s.p-50)*2

10=s.p-50

10+50=s.p

selling price=Rs.60