Question

Joong Ki, Minho and Ali have some green and some red buttons. Joong Ki has 9 more buttons than Minho. Minho has 5 more green buttons than Joong Ki. The ratio of the number of red buttons that Joong Ki has to the number of red buttons that Minho has is 5:3. The ratio of the number of green buttons to red buttons Ali has is 3:1
How many red buttons do Joong Ki and Minho have together?

Please help, thank you so much.

Answer 1

Note that the number of buttons Ali has makes no difference to the problem.
So, let a = Ki's red buttons
b = Ki's green buttons
c = Minho's red buttons
d = Minho's green button.
They have told you that
a+b = c+d+9
d = b+5
a/c = 5/3
Solve those. I get a+c = 56, regardless of b and d

Answer 2

I dont get it