Multiple choice

Find the value of x in the following expression. x = 1.5% of 960 + 2.5% of 1280 + 441

  1. 487

  2. 487.4

  3. 389

  4. 389.9

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

x = 0.015 * 960 + 0.025 * 1280 + 441 = 14.4 + 32 + 441 = 487.4.

AI explanation

Calculate one percent of 960, which is 9.6, and multiply by 1.5 to get 14.4. Next, calculate one percent of 1280, which is 12.8, and multiply by 2.5 to get 32. Adding 14.4, 32, and 441 gives the final value of x as 487.4.

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