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How many iron rods of length 7m and dia 2cm can be made from the .88 cubic meter of metal?

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How many iron rods of length 7m and dia 2cm can be made from the .88 cubic meter of metal?
posted Aug 6, 2014 by anonymous

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2 Answers

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Volume of each rod = Pi * r * r * l
r = 2cm/2 i.e. 1cm or .01 m
l = 7

So volume of rod = (22/7) * .01 *.01 * 7 = .0022 cubic m

Metal volume = .88

Number of possible rod = .88/.0022 = 400

Answer: 400 rods are possible

answer Aug 7, 2014 by Salil Agrawal
0 votes

40000....because 0.88 m cube=880000 cm cube, hence number of rods = 880000/22=40000 since vol of one rod= pi*4*7/4=22 cm cube

answer Feb 3, 2017 by Kewal Panesar
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