Brayden ate more because 3/4 of 16 is 12 leaving and 2/3 of 15 is 10 so Brayden ate more
Triangle QTR=~ triangle SRT
3^2 + height^2 = 9^2
9 + height^2 = 81
height ^2 = 72
height = sqrt(72)
X=5 I have work shown. hope it helps
If you are asking how much it is increased, it is 39.