- Home
- Standard 13
- Quantitative Aptitude
7.Profit and Loss
medium
Mahesh purchased $25\, kg$ of rice at $32$ per $kg$ and $15\, kg$ of rice at $Rs\,.36$ per $kg.$ He mixed the two varieties of rice and sold it at $Rs.\, 40.20$ per $kg.$ What is the percent profit earned?
A
$25$
B
$40$
C
$30$
D
$20$
Solution
Total $CP$ of mixture $=$ $Rs.$ $[25 \times 32+15 \times 36]$
$=$ $Rs.$ $[800+540]=$ $Rs. 1340$
$CP$ of $1$ $kg$ mixture $=$ $Rs.$ $\left[\frac{1340}{25+15}\right]=$ $Rs. 33.5$
$SP$ of $1$ $kg$ mixture (given) $=$ $Rs. 40.20$
Profit$\%=\frac{S P-C P}{C P} \times 100=\frac{40.20-33.5}{33.5} \times 100=20 \%$
Standard 13
Quantitative Aptitude
