If the discount of $10 \%$ is given on the marked price of a radio, the gain is $20 \%$. If the discount is increased to $20 \%,$ the gain is......$\%$
$6 \frac{1}{4}$
$5$
$7 \frac{5}{8}$
$6 \frac{2}{3}$
A shopkeeper cheats to the extent of $10 \%$ while buying as well as selling, by using false weights. His total gain is in $\%$
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?
Find $CP$ when $SP = Rs.\, 51 .70, \operatorname{loss}=12 \% ?$
Kamal has some apples. He sold $40 \%$ more than he If he sold $70$ apples, how many dis he eat?
An article is listed at $Rs.\,65.$ A customer bought this article for $Rs.\, 56.16$ and received two successive discounts of which one is $10 \% .$ Find out the other discount in this discount scheme offered by the shopkeeper. (in $Rs.$)