The overall age of X and Y is 10 year greater than the overall age of Y and Z.
The overall age of X and Y is 10 year greater than the overall age of Y and Z. Z is how many decades younger that X?
Answer/Solution
10
Steps/Work
B
10
(X + Y) – (Y + Z) = 10
X – Z = 10
10
(X + Y) – (Y + Z) = 10
X – Z = 10