Q267
The average of 11 results is 50. If the average of the first six results is 49 and that of the last six is 52, the sixth number is -
A.
48
B.
50
C.
52
D.
56
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
According to the question,Average of 11 numbers is = 50
sum of 11 numbers is = 50 × 11 = 550
∴ VI number
= 312 + 294 - 550
= 56