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Praetorian
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cbrf3
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cbrf3
C.......less than 1 minute!!



1000 km is the correct answer. cbrf3 , share your method if you can.

Length of the smaller cube = 1 mm
Length of the bigger cube = 1 m = 1,000 mm

So

Number of cubes =

Volume of the bigger cube
......................................
Volume of the smaller cube

1000 *1000* 1000
..................................
1 *1* 1

= 1,00,00,00,000

Since each smaller cube is having a side of 1 mm, while
coining these small cubes end-to-end, total length of this
cube-rope will be 1 ├Ч 1,00,00,00,000 mm = 1,000 km.
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cbrf3
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praetorian123, I did it same as ur method..........divide volumes to get number of cubes, which would be 1m^3/1mm^3 = (10^3)^3/1^3=10^9 cubes.Multiply by 1 mm to get 10^9 mm as length and divide by 10^6 to get the length in kilometeres........
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Praetorian
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cbrf3
praetorian123, I did it same as ur method..........divide volumes to get number of cubes, which would be 1m^3/1mm^3 = (10^3)^3/1^3=10^9 cubes.Multiply by 1 mm to get 10^9 mm as length and divide by 10^6 to get the length in kilometeres........


Cool.. you are good at Quant. great work with these problems, cbrf3.
you and halle. have been quite an asset to this forum.

keep it up :)

Regards
Praetorian



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