Seema sells a pen to Sapna at a profit of $25 \% .$ Sapna sells it to Asha at a profit of $10 \%$ and Asha sells it to Kavita at a profit of $5 \%$. If Asha sells it for $Rs.\,231,$ find the cost price at which Seema bought the pen? (in $Rs.$)
$195$
$160$
$145$
$135$
By selling 80 ball pens for $Rs.\, 140$ a retailer loses $30 \%$. How many ball pens should he sell for $Rs.\, 104$ so as to make a profit of $30 \% ?$
Nutan bought a watch with $24 \%$ discount. If she pays $Rs.\, 779$ for that watch then what is the marked price of watch in $Rs.$?
$60 \%$ of the cost price of an article is equal to $50 \%$ of its selling price. Then the percentage of profit or loss on the cost price is
Arun buys one kilogram of apples for $Rs.\, 120$ and sells it to Swati gaining $25 \%$. Swati sells it to Divya who again sells it for $Rs.\, 198,$ making a profit of $10 \%$. What is the profit percentage made by Swati?
A trader sells rice at a profit of $5 \%$ and uses a weight which is $25 \%$ less. Find the total percentage gain.