Question

The mean of 5 numbers is 27. If one of the number is excluded , their mean is 25 . Find the excluded number​

Answer 1

Answer:

The excluded number is 35.

Step-by-step explanation:

Given that the mean of 5 numbers is 27.

Therefore, total sum of 5 numbers = 27 × 5 = 135

Now, let x be the excluded number.

So, according to the given condition,

(135 - x)/4 = 25

135 - x = 100

x = 35

Answer 2

The mean of the numbers 27

The, sum of five numbers = 5 x 27 =135.

If one number is excluded, then the new mean is 25

Sum of numbers = 4 x 25 = 100

Excluded number = 135 -100 = 35