Question

If each edge of a cube is increased by
50%, find the percentage increase in its
surface area.
(A) 50%
(B) 100%
(C) 125%
(D) 150%​

Answer 1

Answer

100

Step-by-step explanation:

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Answer 2

Answer:

(C) 125%

Step-by-step explanation:

After 50% increase, each edge of the cube becomes 150/100 of the original. Thus, the surface area of the cube becomes (150/100)² = 225/100 of the original. Hence, increase in perecentage of surface area = (225-100) = 125% .

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