Mean of 5 number is 22. if one number is excluded mean become 19. the excluded number is?
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Solution :-
The mean of 5 numbers = 22
Sum of all 5 numbers = 5*22 = 110
If one number is excluded, numbers remained = 4
The mean of 4 numbers = 19
Sum of these 4 numbers = 4*19 = 76
Excluded number = Sum of 5 numbers - Sum of 4 numbers
⇒ 110 - 76
= 34
Hence, 34 is the excluded number.
Answer.
The mean of 5 numbers = 22
Sum of all 5 numbers = 5*22 = 110
If one number is excluded, numbers remained = 4
The mean of 4 numbers = 19
Sum of these 4 numbers = 4*19 = 76
Excluded number = Sum of 5 numbers - Sum of 4 numbers
⇒ 110 - 76
= 34
Hence, 34 is the excluded number.
Answer.
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