If the arithmetic mean of seventy-five numbers us calculated it is…

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If the arithmetic mean of seventy-five numbers us calculated, it is 35. If each number is increased by 5, then mean of new numbers is:

  1. A. 30
  2. B. 40
  3. C. 70
  4. D. 90

Answer: Option B

Here is complete explanation of If the arithmetic mean of seventy-five numbers us calculated it is….

Solution(By ExamCraze Team)

Arithmetic mean of 75 members = 35
Sum of 75 numbers
= (75 × 35) = 2625
Total increase
= (75 × 5) = 375
Increased sum
= (2625 + 375) = 3000
Increased average
= $$frac{3000}{75}$$
= 40

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