If an empty rectangular water tank that has dimensions 100 centimeters, 20 centimeters is to be filled using a right cylindrical bucks with a base radius of 9 centimeters and a height of 20 centimeters, approximately how many buckets of water will it take to fill the tank?

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Uniteasy Admin · Accepted Answer

The volume of the rectangular tank is,
$$ 100	imes 20	imes 40 =80000  $$ cubic centimeters

The volume of the bucket is 
$$ \pi r^2h \approx 3.14\cdotp 9^2\cdotp 20 = 5086.8 $$ cubic centimeters

Divide the volume of the tank with the volume of the bucket
$$ 80000 \div  5086.8 \approx 15.6 $$

So B is the choice

Multiple Choice Question (MCQ)

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