The average height of 25 boys is 1 4 m When…

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The average height of 25 boys is 1.4 m. When 5 boys leave the group, then the average height increased by 0.15 m. What is the average height of the 5 boys who leave ?

  1. A. 0.8 m
  2. B. 0.9 m
  3. C. 0.95 m
  4. D. 1.05 m

Answer: Option A

Here is complete explanation of The average height of 25 boys is 1 4 m When….

Solution(By ExamCraze Team)

Sum of height of the 5 boys
= (25 × 1.4 - 20 × 1.55) m
= 4 m
∴ Required average
= $$left( {frac{4}{5}} right)$$
= 0.8 m

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