Multiple choice

What approximate value will come at place of question mark (?) in the following question? 24% of 650 - ?% of 123.68 = 78.2

  1. 75

  2. 40

  3. 38

  4. 63

  5. 92

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

24% of 650 = 0.24 × 650 = 156. So, 156 - ?% of 123.68 = 78.2. This means ?% of 123.68 = 156 - 78.2 = 77.8. Converting to decimal: ?/100 × 123.68 = 77.8, so ? = 77.8 × 100 ÷ 123.68 ≈ 62.9. Among the options, 63 is the closest approximation.