Multiple choice

What approximate value should come at place of question mark (?) in the following question? (89 \times 63 + 42 \times 99 = 115 \times ?)

  1. 75

  2. 85

  3. 65

  4. 95

  5. 105
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

LHS = 89 × 63 + 42 × 99 = 5607 + 4158 = 9765. RHS = 115 × ? = 9765. Therefore ? = 9765 ÷ 115 = 84.87 ≈ 85.

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