ssccglapex

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 Answer: Option D
Show Answer

Solution(By Apex Team)

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

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