The cash difference between the selling prices of an article at a profit of $4 \%$ and $6 \%$ is $Rs.\, 3.$ The ratio of the two selling price is
$51: 52$
$52: 53$
$51: 53$
$52: 55$
A shopkeeper marks his goods $20 \%$ above $CP$ but allows $30 \%$ discount for cash. His net loss is in $\%$?
A person sells two articles, each for $Rs.\,1040.$ He incurs $20 \%$ loss on the first and $10 \%$ loss on the second. Find out overall percent loss.
A vendor buys bananas at $9$ for $Rs. 8$ and sells at 8 for $Rs. 9.$ What will be the profit or loss (in $\%$)?
A man gains $15 \%$ by selling a calculator for a certain price. If he sells it at the triple the price, then what will be the profit percentage?
In these questions, two equations mabered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option.
$I.$ $2 x^{2}+19 x+45=0$
$II.$ $2 y^{2}+11 y+12=0$