Question

A grocer bought one quintal of rice at Rs. 24 per kg. He sold 75 kg of it at the rate of Rs. 26 per kg. At what rate per kg must he sell the remainder to gain 15% on the whole?

• A. Rs. 30
• B. Rs. 32.40
• C. Rs. 25
• D. Rs. 35

Answer 1

Answer: (B)

Rs. 32.40

Total CP $=100\times 24$

$=Rs.2400$

Total SP $=75\times 26+25\times x$

$=1950+25\times x$

$gain=SP-CP$

$=1950+25x-2400$

gain $\%=$ $\frac{gain}{CP}\times 100$

$15=\frac{1950+25-2400}{2400}\times 100$

$x=Rs.32.40$

So he must sell remaining at a rate of Rs. $32.40$ per kg.