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AP ICET 2015 Paper

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Question : 5 of 200

Marks: +1, -0

What is the surface area of the cuboid ?

I. Ratio of its length to its breadth is 2 : 5.

II. Volume of the cuboid is 100 cu. units.

if the statement I alone is sufficient to answer the question.
if the statement II alone is sufficient to answer the question.
if both the statements I and II are sufficient to answer the question but neither statement alone is sufficient.
if both the statements I and II together are not sufficient to answer the question and additional data is required.

Solution:

Surface area of cuboid= 2(LB+BH+LH)

I. Given:

\frac{L}{B}=2:5

∴ I alone is not sufficient.

II. Given:Volume = L.B.H = 100 cu. units

II alone in not sufficient as we can’t get the absolute values of L,B,H.

I&II Even the two together are not sufficient to determine the dimensions and

hence surface area of the cuboid.

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