Question:
An iron cube of size 10 cm is hammered into a rectangular sheet of thickness 0.5 cm.If the sides of the sheet be in the ratio 1 : 5 then the sides are
An iron cube of size 10 cm is hammered into a rectangular sheet of thickness 0.5 cm.If the sides of the sheet be in the ratio 1 : 5 then the sides are
Updated On: Jan 30, 2025
- 20 cm, 100 cm
- 10 cm, 50 cm
- 40 cm, 200 cm
- None of these
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The Correct Option is A
Solution and Explanation
Let's take one side of the sheet be k and other side be 5k
Since the sheet is made from the cube there volumn remains same.
volumn of cube = a3
volumn of cuboid = length × breadth × thickness
103 = k ×5k × 0.5
k2 = 400
k = 20 cm
One side is 20 cm and
other side is = 5k
= 20 × 5
= 100 cm
Other side will be 100 cm
The correct option is (A)
Since the sheet is made from the cube there volumn remains same.
volumn of cube = a3
volumn of cuboid = length × breadth × thickness
103 = k ×5k × 0.5
k2 = 400
k = 20 cm
One side is 20 cm and
other side is = 5k
= 20 × 5
= 100 cm
Other side will be 100 cm
The correct option is (A)
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