Multiple choice

In the following questions find the approximate value of question mark (?) 145% of 1280 – 89 % of 1870 = ?% of 1729

  1. 20.32

  2. 5.6

  3. 7.9

  4. 16

  5. 10
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E Correct answer
Explanation

Calculate: 145% of 1280 - 89% of 1870 = ?% of 1729. First, 145% of 1280 = 1.45 x 1280 = 1856. Then, 89% of 1870 = 0.89 x 1870 = 1664.3. Now, 1856 - 1664.3 = 191.7. So, 191.7 = ?% of 1729. Therefore, ?% = 191.7 / 1729 x 100 = 11.09%. The closest answer is 10%. The small difference is due to rounding in calculations.

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