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Multiple choice

If the dimensions of a cuboid are increased by 15%, 10% and 5%, respectively. Find the approximate percentage increase in its volume.

  1. 30%

  2. 33%

  3. 25%

  4. 50%

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Volume V = L*W*H. New volume V' = L(1.15) * W(1.10) * H(1.05) = V * (1.15 * 1.10 * 1.05) = V * 1.32825. Increase is 32.825%, which is approximately 33%.

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