Latest 3i-Infotech Aptitude Question SOLUTION: Q. There is log weighing 30kgs. The log having twice thickness and twice short as first one will weigh howmuch ??

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Q. There is log weighing 30kgs. The log having twice thickness and twice short as first one will weigh howmuch ??

Asked In 3i-Infotech chandreyee chowdhury (10 years ago)

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Rahul singh  (9 years ago)

60 kgs as weight is proportional yo volume

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M J SHIVAYOGI  (7 years ago)

let d be the diameter and h be the height of the first cylinder
then 2d will be the diameter and 1/2 h will be the height of the second cylinder
volume of 1st cylinder= phi/4 d^2 h
volume of 2nd cylinder= phi/4 (2d)^2 (1/2h)= 1/2 phi (d)^2 h
1/4:1/2
the weight is 60 kg

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Devendra Marghade  (10 years ago)

30 kg.
If l,b & h corresponds to length,breadth & thickness respectively
As l*b*h=30 & (l/2)*b*(2h)=l*b*h will be equal to 30

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