Solve the Equlation

If 32x-y = 3x+y = sqrt. 27, then the value of 3x-y will be:

  1. 1/ sqrt. 3
  2. 1/sqrt. 27
  3. sqrt. 3
  4. 3
Monis Rasool Professor Asked on 7th July 2015 in Maths.
Add Comment
1 Answer(s)

Answer: (3) sqrt.3
Explanation:-
32x – y  = 3x + y = sqrt.27
32x – y  = 3x + y = (3)3/2
comparing on both side,
2x – y = 3/2               ……………………. (1)
x + y = 3/2                     …………………. (2)
Solve equation (1) and (2)
x = 1 and y = ½
Then, the value of 3x – y  = 31 – ½
                                      = 31/2  or   sqrt.3
Hence, the answer is (3) sqrt.3

Anurag Mishra Professor Answered on 8th July 2015.
Add Comment

Your Answer

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