The cost price of $20$ articles is the same as selling price of $x$ articles. If the profit is $25 \%,$ then the value of $x$ is
$15$
$16$
$18$
$25$
Oil equal to $20 \%$ of the weight of ground nut is extracted in a mill. The matter left after extraction is sold as cattle feed at the rate of $Rs.\, 12.5$ per $kg$. The ground nuts are bought at $Rs.$ $20$ per $kg.$ the processing cost is $Rs.\, 5$ per $kg$. At what price $(Rs.$ per $kg$ ) should the oil be sold to earn $20 \%$ profit on total costs (Total cost $=$ cost of groundnuts and processing costs)?
A shopkeeper mixes $20\, kg$ of rice which cost him $Rs.\,5$ per $kg$ with $35\,kg$ of rice which cost him $Rs.\,7$ per $kg.$ Then he sells the mixture at $Rs.\,6.5$ per $kg$. Find his total profit and percent profit.
Aditya sold $TV$ to Sanjay at $12 \%$ more than the $CP.$ If Sanjay paid $Rs.\, 17696$ for that $TV$ then what was the original price of the $TV$ in $Rs.$?
Tarun bought a $TV$ with $20 \%$ discount on the labelled price. Had he bought it with $25 \%$ discount, he would have saved $Rs.\,500.$ At what price did he buy the $TV?$
In these questions, two equations mabered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option..
$I$. $6 x^{2}+19 x+15=0$
$II$.$3 y^{2}+11 y+10=0$