Question

Juan has 240 marbles. This is three times as many marbles as Jon and Jeremy have combined. If Jon has 50 marbles, how many marbles does Jeremy have?

Answer 1

30

Explanation:

Let x = number of marbles Jon has

y = number of marbles Jeremy have

3(X + Y) = 240

3(50 + Y) = 240

Divide both sides by 3

50 + Y = 80

Solve for y

Y = 30