Question

the mean of 5 numbers is 27.if one number is included, the new mean of is 25. find the included number

Answer 1

Let included no be x

Now in
Mean of 5 numbers = 27
Mean of 6 numbers

= 27+x/6= 25
27+x= 150
x= 150-27
= 123Ans

Answer 2

Answer:

Step-by-step explanation:

27+x/6 = 25

27+x= 150 (6×25)

X=150-27

X=123