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?
$25$
$40$
$30$
$20$
Sonal buys mangoes at the rate of $3 \,kgs$ for $Rs$. $21$ and sells them at $5$ $kgs$ for $Rs.$ $50 .$ To earn a profit of $Rs.\,102,$ he must sell how many mangoes in $kgs$?
The cash difference between the selling price of an article at a profit of $4 \%$ and $6 \%$ is $Rs.$ $3 .$ The ratio of the $2$ selling price is?
A fan costing $Rs. 1200$ is being sold for $Rs. 1500$. What is the profit percent?
If on selling $12$ note books, a seller makes a profit equal to selling price of $4$ notebooks. What is his percent profit?
A man bought $15$ mangoes for a rupee. How many mangoes were sold for a rupee so that there is a loss of $25 \% ?$