Q35. The average age of a grandfather, a father, and a son is 50 years. The grandfather is 70 years old, and the father is 45 years old. What is the son's age?Mathematics — Arithmetic — Question 35 of 449A. 35 yearsB. 30 yearsC. 45 yearsD. 40 yearsPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →