Question

Anne, Ryan, and Joel collect empty cans for recycling. They collect a total of 1925 cans. Anne collects half as many cans as Ryan. Joel collects twice as many cans as Ryan. How many cans does Joel collect?

Answer 1

Let anne , ryan & joel collected x,y,z cans ,

Now , ATQ

x + y + z = 1925 ----(1)

x = y/2 & z = 2x

putting z in eq.(1)

3x + y = 1925

putting y = 2x

5x = 1925

x = 385

since , z = 2x

z = 770

hence 770 cans by joel