Surface Areas and Volumes Test

Result

Surface Areas and Volumes Test - 2

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

The length, breadth and height of a cuboid are 10 m, 6 m and 5 m, respectively. It is melted and converted into 10 equal cubes. In this process, 10% of the material is lost. What is the length of the edge of each cube?

A
2 m

B
3 m

C
4 m

D
6 m

Solution

Volume of the original cuboid = 10 × 6 × 5 = 300 m³
Now, lost material = 300 × 10/100 = 30 m³
So, remaining volume for 10 equal cubes = 300 - 30 = 270 m³
Now, according to the question,
270 = 10 × x³
x = 3 m