WBCS.LIVE practice question

যদি a + b = 5 এবং a - b = 3 হয়, তাহলে ab = ?

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

Answer options

  1. 4
  2. 8
  3. 1
  4. 2

Correct answer and explanation

Correct answer: 4

Explanation: সঠিক উত্তর ab = 4