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The mean of 25 numbers is 14. If 3 is added to every number, what will be the new mean? -

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Question

The mean of 25 numbers is 14. If 3 is added to every number, what will be the new mean?

Options

  • 14

  • 15

  • 17

  • 18

MCQ

Solution

17

Explanation:

Mean of 25 numbers = 14

∴ Sum of 25 numbers = 25 × 14 = 350

Now, 3 is added to every number

So, total number added = 25 × 3 = 75

∴ Sum of total numbers = 350 + 75 = 425

∴ New mean = `425/25` = 17

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Statistics (Entrance Exam)
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