5
Q:
A) 55 Years | B) 62 Years |
C) 42 Years | D) 69 Years |
Answer: B) 62 Years
Explanation:
Explanation:
Let the average of 8 men be x. Age of new man be N.
Total age of 8 men = 8x
⇒ x + 4 = ((8x – 30) + N)/8
⇒ 8x + 32 = 8x – 30 + N
⇒ N = 32 + 30
⇒ N = 62