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  1. If the area of the base of a cone is increased by 100%, then the volume increases by
    1. 200%
    2. 182%
    3. 141%
    4. 100%
Correct Option: D

Using Rule 10,
Increase in height = 0%

Volume =
1
 area of base × height
3

∴ Percentage increase = x + y +
xy
 %
100

= 100 + 0 +
100 × 0
 % = 100%
100


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