Find The Value of abc? If

If a, b and c are non-zero, a + 1/b = 1 and b + 1/c = 1, then, the value of abc is

  1. -3
  2. 1
  3. -1
  4. 3
Anmol Default Asked on 1st August 2015 in Maths.
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1 Answer(s)

Answer: (3) -1
Explanation:-

a + 1/b = 1
ab + 1 = b                      ………………….. (1)
And, b + 1/c = 1
b = 1  -1/c …………………………… (2)
On equating equation (1) & (2),
ab + 1 = 1 – 1/c
ab = -1/c
abc = -1
Hence, the answer is (3) – 1.

Anurag Mishra Professor Answered on 1st August 2015.
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