Answer: Option A
Answer: (a)Total age of 12 players = 12 × 25 = 300 Total age including captain = 13 × 26 = 338∴ Age of the captain = 338 – 300 = 38 years Aliter : Using Rule 23, ( If in a group, one member is replaced by a new member, then, Age of new member = ( age of replaced member) ± xn where, x = increase (+) or decrease (–) in average n = Number of members. ) Here, x = 1, n = 12 Age of the captain = Average + x (n + 1) = 25 + 1 (12 + 1) = 38 years