The average of N numbers is 16. If a number 2...
The average of N numbers is 16. If a number 22 is removed, then average becomes 15. What is the value of N?
• a)
6
• b)
7
• c)
8
• d)
9
The average of N numbers is 16. If a number 22 is removed, then averag...
Average of N numbers = 16
∴ Sum of N numbers = 16N
According to problem,
⇒ 16N - 22 = 15(N - 1)
⇒ 16N - 22 = 15N - 15
⇒ N = 7
The average of N numbers is 16. If a number 22 is removed, then averag...
Average of N numbers = 16
∴ Sum of N numbers = 16N
According to problem,
⇒ 16N - 22 = 15(N - 1)
⇒ 16N - 22 = 15N - 15
⇒ N = 7
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The average of N numbers is 16. If a number 22 is removed, then average becomes 15. What is the value of N?a)6b)7c)8d)9Correct answer is option 'B'. Can you explain this answer?
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