The average weight of a class of students is 67.5 kg. The weight of the class teacher is 25% more than the average weigh…

$$\frac{5}{9}$$ part of the population in a village are males. If 30% of the males are married, the percentage of unmarr…

In a test, minimum passing percentage for girls and boys are 45% and 60% respectively. A boy scored 767 marks and failed…

The charges for a five-day trip by a tourist bus for one full ticket and a half-ticket are Rs. 1440 inclusive of boardin…

A shop sells floor tiles at Rs. 48 per square meter. A contractor employs a machine that polishes the tiles that damages…

Two numbers are respectively 20% and 50% of the third number. What percent is the first number of the second ?

The firm uses the following function to calculate the production out (PO) : PO = 5.3C<sup>2</sup> L<sup&g…

Vinay decided to donate 5% of his salary. On the day of donation he changed his mind and donated Rs. 1687.50, which was …