Ron's age is 2/3 of Mark's age. Mark's age is 3/5 of Sara's age. Sara is 8 years older then Ron. How old is Mark?

Question

This is suppose to use ratios to solve it

Answer 1

suppose Ron's age is X, Mark's age is Y and Sara's age is Z

Z=X+8

Y=3/5 * Z

X=2/3 * Y

Hence, 5/3 * Y = 2/3 * Y + 8, Y = 8

Mark is 8 years old.