Question

The mean of a set of 5 numbers is 26. What would the mean be if one of the numbers was increased by 10?
(A) 10 (B) 26 (C) 28 (D) 36

Answer 1

Answer:

C) 28

Step-by-step explanation:

Mean of 5 numbers = 26

Sum of numbers/5 = 26

Sum of numbers = 130

Since one number is increased by 10

Therefore,

Sum of numbers = 130+10

Sum of numbers = 140

Now New mean = Sum/5

= 140/5

=28

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