Question

If x+1/x =5 then the sum of digits of x^9+ 1/x^9 is

Answer 1

Let the number to be identified be x

As per the given condition

If we subtract 1/2 from a number and multiply the result by 1/2, we get 1/8.

So the equation becomes

(1/2)(x – 1/2) = (1/8)

=(x – 1/2) = (1/4)

=4x – 2 = 1

=4x = 3

Hence x = 3/4

Therefore 3/4 is the number from which if we subtract 1/2 from a number and multiply the result by 1/2, we get 1/8.