Question

The average of five numbers is 25.If four of the numbers are 4,6,10 & 7 ,
find the fifth number.

Answer 1

Answer:

98

Step-by-step explanation:

4+6+10+7+x/5=25

27+x=125

x=98

Answer 2

Answer:

The following fifth number 98

Step-by-step explanation:

Let the fifth number be x.

Hence the numbers are now: 4,6,10, 7 and x.

Sum of the 5 numbers = 4+6+10+7+x = 27 + x

The average of five numbers is = (27 + x)/5

According to question , the average of five numbers is 25.

(27 + x)/5 = 25

or, 27 + x = 125

or, x = 125 - 27

or, x = 98

The required fifth number is 98.