Q349
The average of six numbers is 20. If one number is removed, the average becomes 15. What is the number removed ?
A.
5
B.
35
C.
112
D.
45
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
According to the question,Average of six numbers is = 20
Sum of six numbers is
= 20 × 6 = 120
One number is removed then,
Average of five numbers is = 15
Sum of five numbers is = 15 × 5 = 75
∴ Remove number is
= 120 - 75 = 45