Question

at franklin middle school,3/8 of the students take a bus to school, 3/5 walk, and the rest bike. There are 20 students who bike to school. How many students are in the school

Answer 1

There are 800 kids in the school.

Explanation:

Let x be the answer (how many kids are in the school).

Let's add them together. 3/5+3/8 = how many people do not bike to school, which is 0.975 of everyone. 1-0.975 = 0.025, which means 0.025x = 20. 0.025x = 1/40, so 1/40x = 20. Multiplying, we have x =800.