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How many cylinders having 2.1 cm of radius and 1.4 cm of height can be made out of a cuboid metal box having dimensions 33 cm, 21 cm, 10.5 cm?

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in Mathematics - Class 10 by (506k points)
How many cylinders having 2.1 cm of radius and 1.4 cm of height can be made out of a cuboid metal box having dimensions 33 cm, 21 cm, 10.5 cm?

(a) 152

(b) 154

(c) 844

(d) 841

This question was posed to me by my school principal while I was bunking the class.

The doubt is from Conversion of Solid from One Shape to Another topic in section Surface Area and Volumes of Mathematics – Class 10

1 Answer

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The correct answer is (c) 844

The explanation: Number of cylinders(volume of a cylinder) = volume of a cuboid

Number of cylinders (πr^2h) = lbh

Number of cylinders (3.14 × 1.4^2 × 1.4) = 33 × 21 × 10.5

Number of cylinders = 844

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