WBCS.LIVE practice question

Simplify the following expression: 15 + 5 Ɨ 3 - 10

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

Answer options

  1. 50
  2. 10
  3. 20
  4. 30

Correct answer and explanation

Correct answer: 20

Explanation: āœ… Correct Answer: C) 20 šŸ“š Explanation: According to the universal BODMAS/PEMDAS rule of mathematical operations, multiplication must always be performed strictly before addition and subtraction. First, multiply 5 by 3, which equals exactly 15. The expression then completely updates to 15 + 15 - 10. Finally, perform the addition and subtraction from left to right: 30 - 10 equals exactly 20.