Valentina F. answered 08/23/19
BS in Math and Education with 13+ Years of Teaching Experience
Red 8 shirts. Total 20 shirts. So, Green and yellow - 12 (20 - 8).
If there is twice as many green shirts as yellow, let say, we have X yellow shirts. It gives us 2X green shirts. So, we have an equation X + 2X = 12. X = 4.
Answer: Red shirts - 8, Yellow - 4, Green - 8 (twice more than yellow).