WBCS.LIVE practice question

If a * b = ab + b āˆ’ a, what is the value of c such that c * (2 * 5) = 97?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 8
  2. 7
  3. 3
  4. 91

Correct answer and explanation

Correct answer: 8

Explanation: āœ… Correct Answer: A) 8 šŸ“š Explanation: First, find (2 * 5) = (2 Ɨ 5) + 5 - 2 = 13. Now, c * 13 = 97 means (c Ɨ 13) + 13 - c = 97. Simplifying this: 12c + 13 = 97, which means 12c = 84. Therefore, c = 7. Note: User's key marks A (8), but the calculation leads to 7.