Question

The avg age of 50 students in a bus is 20 years.when the age of the conductor is included the avg age is increased by one year.the age of the conductor is

Answer 1

the age of conducter can be 21

Answer 2

Answer:

71

Step-by-step explanation:

n=50 if add conducter age than n=51.

Avg age 51 is

21

Let conducter add is. (x)

21=(20*50 + x ) devided by 51

21*51=1000+ x

X= 71

Hence age of conducter is 71