Challenging Puzzles - We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 ti

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We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 times smaller, but made of the same material weigh?

Total Answers and Comments: 8

Last Update: June 20, 2008 Asked by: Pooja Gupta84

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Best Rated Answer

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Submitted by: santosh_kumar0009

Hi Mahesh It is not so easy.

If you take x,y,z as length breadth and height then divide each by 4 and calculate the volume it is (x*y*z)/64. Now Original brick is of volume x*y*z. Both are of same material then both have same density. Now ration of the volumes are 1:1/64. So divide 4 kg to 64 then 1/16 is the weight is the weight.

Above answer was rated as good by the following members:
shahdadpuri

December 13, 2006 06:17:25

mahesh

RE: We have a brick of regular size. It weights 4 kilo...

It must be of 1 Kilogram

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December 14, 2006 16:20:01

santosh_kumar0009

Member Since: November 2006 Contribution: 12

RE: We have a brick of regular size. It weights 4 kilo...

Hi Mahesh It is not so easy.

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1 0

Overall Rating: +1

December 19, 2006 09:46:45

ravichandra_r

Member Since: December 2006 Contribution: 7

RE: We have a brick of regular size. It weights 4 kilo...

If volume is 1/4th then weight will be 1/4th . Ans = 1kg

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January 29, 2007 07:59:42

ankitbandyopadhyay

Member Since: January 2007 Contribution: 5

RE: We have a brick of regular size. It weights 4 kilo...

Santosh is right

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March 09, 2007 19:23:11

Richard Thomson

RE: We have a brick of regular size. It weights 4 kilo...

If it is x/4* y/4 z/4 than it is badly stated problem.Â It should state 1/4 in all demensions

out

RT

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December 22, 2007 12:52:11

rrahull254

Member Since: December 2007 Contribution: 1

RE: We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 times smaller, but made of the same material weigh?

1 kilogram

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June 18, 2008 01:55:34

kiranaar10728

Member Since: June 2008 Contribution: 10

RE: We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 times smaller, but made of the same material weigh?

as the question demands the brick to be 4 times smaller, it doesnt mean that all the parameters of the rectangle decrease 4 times.but it means the overall volume gets reduced by 4.so weight should be 4/4=1 kg

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June 20, 2008 13:04:18

digvijay87

Member Since: June 2008 Contribution: 1

RE: We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 times smaller, but made of the same material weigh?

The question should have been the dimensions of the brick are 4 times smaller than the original dimensions....then the explanation given that it weighs 1/16th is valid

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