Question

if the average of 15,18,x,14,21,26,8 is 16 find the value of x

Answer 1

we know average= sum of total digits/ number of digits..so (15+18+x+14+21+26+8)/7=16..... 102+x=112 so x=10

Answer 2

15+18+X+14+21+26+8÷7=16
88+X÷7=16
88+X=16×7
88+X=112
X=112-88
X=24