Question

the average age of 5 students is 9 yrs .out of them the ages of 4 student are 5,7,8 and 15years . what is the age of remaining student​

Answer 1

Answer:

10

Step-by-step explanation:

let age of student be X

then (5+7+8+15+x)/5=9

35+X=45

X=45-35=10