Question

A shopkeeper purchased a clock for ₹300 and sells it at a gain of 20 %. Find S. P of the clock.

Answer 1

Sp = CP(1 + r/100)
SP= 300( 1+ 20/100)
SP= 300 (120/100)
SP= 300X 120/100
SP= 3 X 120
SP = 360

Answer 2

Cost price of the clock = cp= Rs 300
gain =g=20%
Selling price=sp= cp(100+g)/100
=300(100+20)/100
=3*120
=Rs360
Sp = Rs 360