Two different schools, A and B, have the same number of students. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. What is the ratio of the boys in school A to the girls in school A?

It a, b, and c are three different positive integers less than 10 and greater than zero, what is the greatest...

In the last week of a month, a car dealer sold 12 cars. A new sales promotion came out the first week of the n...

Jesmin spent one-third of her money on books and half of the remaining money on clothing. she then spent three...

An instrument store gives a 10% discount to all students of the original cost of an instrument. During a schoo...

If the average of 11,17,x, and y is 19, what is the average of (x+50) and (y-7)?

2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same...