Question

Ther is a group of 15 members whose average age is 25 one person left the group then average age is increased by one.what is the age of that person who left the group

Answer 1

Answer:

the answer is 11

Step-by-step explanation:

15 members with average 25

so total sum will be 15 * 25 = 375

now one person left and average increase by 1 means average become 26 and members become 14

so sum is 14 * 26 = 364

age of the person is 375-364 =11