The ratio of the number of boys and girls in a college is 7: 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

Two buses start from a bus terminal with a speed of 20 km/h at interval of 10 minutes. What is the speed of a...

It takes 5 hours to fill a container using machine A. The same container can be filled using machine B in 10 h...

Melissa is four times as old as Jim. Pat is 5 years older than Melissa. If Jim is y years old, how old is Pat?

The average (arithmetic mean) of x and y is 20. If x = 5 what is the average of x. y and z?

The sum of two integers is 36, and the difference is 6. What is the smaller of the two numbers?

The angle measure of the base angles of an isosceles triangle are represented by x and the vertex angle is 3x...