Question

7. The mean of 5 numbers is 25. If one number is also included, the mean gets reduced by 1. Then the included number is (ii) 15​

Answer 1

Answer:

Question

The mean of five numbers is 27. If one of the numbers is excluded, the mean gets reduced by 2. What is the excluded number?

Answer · 385 votes

mean of five numbers=27so, sum of 5 numbers=27 x 5=135let excluding number is x now ,sum of 4 numbers =135-xmean=sum of 4 numbers/4=(135-x)/4 => 27-2=(135-x)/4 => 25 x 4=135-x => 100-135=-x => x=35hence excluded number is 35

Answer 2

Answer:

19

Step-by-step explanation:

5 number give 1 that is 5

and 6th number takes 5 then the mean 24

so the 6 th number brings 5 less that the 6th no is

24-5=19

best of luck