Find Out the New Average Height.

Six friends have an average height of 167 cms. A boy with height 162 cm leaves the group. Find the new average height.

  1. 167 cm
  2. 168 cm
  3. 169 cm
  4. 166 cm
Monis Rasool Professor Asked on 9th October 2015 in Maths.
Add Comment
1 Answer(s)

Answer: (2) 168 cm

Explanation:-
The average of height of six friends = 167 cm
Then, the sum of the ages of six friends = 6 x 167
= 1002 cm

A boy with height 162 cm leaves the group,
Then, the sum of remaining 5 friends = 1002 – 162
= 840 cm

Now, the new average of height = 840/5
= 168 cm

Hence, the answer is (2) 168 cm.

Anurag Mishra Professor Answered on 10th October 2015.
Add Comment

Your Answer

By posting your answer, you agree to the privacy policy and terms of service.