Question

Q79
The average of a non-zero number and
its square is 5 times the number. The
number is:
1)9
2)17
3)29
4)295​

Answer 1

Answer:

9

Step-by-step explanation:

Let the number be x

Average of x and its square=5 times x

=(x+x^2)/2=5x

=x^2+x=5xx2

=x^2+x=10x

=x^2=10X-X

=x^2=9x

=x=9

The number is 9