Multiple choice

What approximate value will come in place of the question mark (?) in the following equation? (You are not expected to calculate the exact value.) 67% of 801 − 231.17 = ? − 23% of 789

  1. 489

  2. 439

  3. 540

  4. 520

  5. 590
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A Correct answer
Explanation

0.67 * 800 - 231 = x - 0.23 * 790. 536 - 231 = x - 181.7. 305 = x - 181.7. x = 486.7, which is approximately 489.

AI explanation

Approximate the equation to 67 percent of 800 minus 230 equals the question mark minus 23 percent of 800. This simplifies to 536 minus 230 equals the question mark minus 184. Adding 184 to 306 gives an approximate value of 490.

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