Question

the marked price rupees 1500 of a watch was sold at a discount of 8% he got 20 % profit what was its cost price
options:
a) 1030
b) 1050
c) 1000
d) 1150​

Answer 1

$selling \: price \: of \: watch \\ = 1500 \times \frac{92}{100} = 1380$

$cost \: price \times \frac{120}{100} = selling \: price \:$

$cost \: price \times \frac{120}{100} = 1380$

$cost \: price = 1380 \times \frac{100}{120} = rs.1150$