Question

The average age of 5 students is 10 years. The

age of one student is 6. What is the average
age of the remaining 4 students?

A.4
B. 11
D. 16
C. 12

Answer 1

B) 11

Explanation:

• Given: Average age of 5 students = 10 years
• Find the sum of age of 5 students.

Sum of age of 5 students = average age of 5 students * number of students

= 10 * 5

= 50

• Now, find the sum of age of 4 students, by subtracting the age of given student from the sum of 5 students.

Sum of age of 4 students = 50 - 6

= 44

• Now, find the average age of 4 students.

`\sf Average = (sum \ age \ of \ 4 \ students)/(4)`

`\sf =(44)/(4)\\\\= 11`

Answer:

`\boxed{\text{\bf Average age of 4 students = 11}}`