Q13. The average of 9 numbers is 72. The average of the first 5 numbers is 68, and the average of the last 5 numbers is 78. What is the 5th number?Mathematics — Arithmetic — Question 13 of 449A. 72B. 82C. 70D. 74Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →