Question

The average age of 50 soldiers in troop is 25 years. If the captain's age is included, the average age of all of them still remains the same. What is the captain's age in years? (A) 25 (C) Less than 25 (B) More than 25 (D) Cannot be determined​

Answer 1

Answer:

25

Step-by-step explanation:

avg= sum / total

25=sum/50

sum=1250

avg =sum/total

25=sum/51

sum= 1275

captain age =1275-1250=

25

Answer 2

Answer:

The captain's age in years is 25.

Step-by-step explanation:

Given,

Number of soldiers= 50

Average age= 25 years

So,Sum of all soldiers age= 50×25

= 1250 years

Since, Now captain age also included

So, Number of all soldiers= 51

But,

According to the question:-

Average will remain same...

So, Sum of soldiers age with captain= 51×25

= 1275 years

So, Age of captain= 1275-1250

= 25 years