Half of $1$ per cent written as a decimal is

$x \%$ of $y + y \%$ of $x = ?$

In a History examination,the average for the entire class was $80$ marks. If $10 \%$ of the students scored $95$ marks and $20 \%$ scored $90$ marks,what was the average marks of the remaining students of the class?

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?

What per cent of a day is $3$ hours?

The sum of the number of boys and girls in a school is $150$. If the number of boys is $x$,then the number of girls becomes $x\%$ of the total number of students. The number of boys is