If √(1 + x/64) = 9/8, then x = ?

  1. 15
  2. 16
  3. 17
  4. 18
Anurag Mishra Professor Asked on 18th April 2016 in Maths.
Add Comment
1 Answer(s)

Answer: (3) 17

Solution:-
Ö(1 + X/64) = 9/8
Square on both side,
1 + X/64 = (9/8)2
1 + X/64 = 81/64
1 = 81/64 – X/64
1 = (81 – X)/64
By cross multiplication,
64 = 81 – X
X = 81 – 64
X = 17

Then, the value of X is 17.

Hence, the correct answer is option (3) 17.

Anurag Mishra Professor Answered on 23rd April 2016.
Add Comment

Your Answer

By posting your answer, you agree to the privacy policy and terms of service.