Answer:
14
Step-by-step explanation:
Given: x : y = 5: 3
Therefore, let x = 5a and y = 3a
x + y = 56
5a + 3a = 56
8a = 56
a = 56/8
a = 7
x = 5*7 = 35
y = 3*7 = 21
Therefore,
x - y = 35 - 21 = 14
