Multiple choice

What approximate value will come in place of question mark (?) in following question? 69.89% of 870 = ? – 39.8% of 85.80 – 72.98

  1. 620

  2. 840

  3. 720

  4. 1020

  5. 940
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Approximating: 70% of 870 = 609, 40% of 86 = 34.4. So 609 = ? - 34.4 - 73, which gives ? = 609 + 34.4 + 73 = 716.4. The closest option is C (720). Rearrange: ? = 69.89% of 870 + 39.8% of 85.80 + 72.98.

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