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Cuboid dimensions increased by percentages: change in volume

This type of question, asked 2 times: 20 Jul 2023 S4, 18 Sep 2025 S2. All 2 questions below, oldest first.

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  1. Question 1

    20 Jul 2023 S4

    69
    The length, breadth and height of a cuboid are in the ratio 1:2:31 : 2 : 3. The length, breadth and height of the cuboid are increased by 200%200\%, 300%300\% and 300%300\%, respectively. Then compared to the original volume, the increase in the volume of the cuboid will be:

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  2. Question 2

    18 Sep 2025 S2

    62
    If all three dimensions of a cuboid are increased by 10%10\%, the volume increases by what percentage?

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