The marked price of a watch was $Rs.\, 720 .$ A man bought the same for $Rs.\, 550.80$ after getting two successive discounts, the first being $10 \% .$ What was the second discount rate? (in $\%$)
$12$
$14$
$15$
$18$
By selling a book for $Rs.$ $360,20 \%$ profit was earned. What is the $CP$ of the book in $Rs.$?
$10 \%$ discount and then $20 \%$ discount in succession is equivalent to total discount of.......$\%$
A shopkeeper purchased a chair marked at $RS.\, 600$ at two successive discounts of $15 \%$ and $20 \% .$ He spent $Rs.\, 28$ on transportation and sold the chair for $Rs.\,545.$ His gain percent was
In these questions, two equations mabered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option.
$I.$ $3 x^{2}-13 x+12=0$
$II.$ $2 y^{2}-15 y+28=0$
An article which is marked at $Rs.\, 975$ is sold for $Rs.\, 897$. The $\%$ discount is?