Two-thirds of three-fourths of one-fifth of a number is $15$. What is $30$ per cent of that number?

How many students passed in first class?
Statements:
$I$. $85 \%$ of the students who appeared in the examination have passed either in first class,second class,or pass class.
$II$. $750$ students have passed in second class.
$III$. The number of students who passed in pass class is $28 \%$ of those who passed in second class.

$A$ housewife saved $₹ 2.50$ in buying an item on sale. If she spent $₹ 25$ for the item,approximately what percentage did she save in the transaction?

The difference of two numbers is $20 \%$ of the larger number. If the smaller number is $20$,then the larger number is:

The price of a car is ₹ $325000$. It was insured to $85 \%$ of its price. The car was damaged completely in an accident and the insurance company paid $90 \%$ of the insurance. What was the difference between the price of the car and the amount received?

$134 \%$ of $3894 + 38.94$ of $134 = ?$