Question 35
Six friends have an average height of 167 cms. A boy with height 162 cm leaves the group. Find the new average height.
Solution
Average height of 6 friends = 167 cm
=> Sum of height of 6 friends = $$167\times6=1002$$ cm
When the boy with height 162 cm left, sum of height of remaining 5 friends = $$1002-162=840$$ cm
=> Required average = $$\frac{840}{5}=168$$ cm
=> Ans - (A)
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