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Question

The surface area of a cube is half of its volume. Then the length of the edge is

A
4×2
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B
6×3
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C
8
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D
12
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Solution

The correct option is D 12
Given that
surface area = 12. volume

6a2=12a3

6=12a

a=12

1181841_1249481_ans_c4780e62097e4a2cb600e0fbb3b188f8.jpg

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