The cost price of an article is Rs.450. The trade marks it…

The cost price of an article is Rs.450. The trade marks it at Rs.630 and sells it by giving 12.5% discount on the marked price. His gain per cent is :

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. 22.5%.

Marked Price = 630

Discount = 12.5% = $1\over8$

SP = 630 × (1 − $1\over8$ ) = 630 × $7\over8$ = $4410\over8$ = $2205\over4$

CP = 450

Profit = $2205\over4$ - 450 = $405\over4$

Profit% = ${405\over4}\over450$ × 100 = 22.5%

SSC Selection Post 2022 PYQ — Question 61