Question

The mean of 5 numbers is 25. If the four numbers 16, 26, 31, 32. Find the fifth number.

Answer 1

Answer:

Fifth no.=20.

Step-by-step explanation:

Given numbers = 16 + 26 + 31 + 32 = 105. x = 125 - 105 = 20. Hence, the fifth number is 20.

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Answer 2

Answer:

20

Step-by-step explanation:

Let the 5th number be x.

Then according to question -

Terms are Mean 16, 26, 31, 32 and x ;   Mean=25

Mean= sum of all the terms/number of terms

25= (16+26+31+32+x)/5

125=105+x

x=20