ssccglapex

The average of 11 results is 60. If the average of first six results is 58 and that of last six is 63, find the 6th result-

A. 66 B. 55 C. 64 D. 68 Answer: Option A
Show Answer

Solution(By Apex Team)

The average of 11 results = 60 The total of 11 results, = 60 × 11 = 660 Average of first six results = 58 Average of last six results = 63 Total of first six results, = 58 × 6 = 348 Total of last six results, = 63 × 6 = 378 ∴ Sixth result = Total of first and last sixth results = Total of 11 results = (348 + 378) – 660 = 726 – 660 = 66

Related Questions On Average


Ajit has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average19 people went to a hotel for combine dinner party 13 by 8 runs. His new average is:

A. 20
B. 21
C. 28
D. 32
Show Answer

Find the average of all the numbers between 6 and 34 which are divisible by 5.

A. 18
B. 20
C. 24
D. 30
Show Answer

In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years
Show Answer

If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is.

A. a = b = c
B. a : b : c = 3 : 2 : 4
C. 4a = 5b = c
D. a + b + c = 12
Show Answer



More Related Questions On Average