Question

PLEASE ANSWER THE QUESTION IN THE PHOTO!

Answer 1

let brown bread = b

white bread= w

in tuna sandwich

50%is b & 50% is w i.e. b=w=21

In Ham

25% of 32 is b i.e. b= 8

75%of 32 is w i.e. w=24

If in total w-b = 20

then in Cheese

w-b= 4

w+b = 26

w=15

b=11