Answer:
Number of green balloons is 24
Number of yellow balloon is 36
Explanation:
G to represent green balloons
R to rep red balloons
Y to rep yellow balloons
R=40(as given)
G=3/5R
G=3/5*40
G=24
to know the number of yellow balloons
G=2/3Y
substitute the value of G in the equation
24=2/3Y
72/2=Y
therefore Y=36