Question

if the selling price of an article is 1 1/3of its cost price find the gain per cent

Answer 1

Let the Cost Price be Rs a

Selling price = 4a/3

Gain = SP - CP

= 4a/3 - a

= a/3

Gain percent = Gain × 100 /CP

= a/3 × 100 / a

= 100 / 3

= 33 1/3 %

Answer 2

Given,

Let us consider the C.P be Rs x

S.P = 4x/3

we know that,

Gain = Selling Price - Cost Price

 → 4x/3 - x

→ x/3

Here, we know that,

Gain percent = Gain × 100/CP

 → x/3 × 100/x

 → 100/3

 → 33.3333.......