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#1 2014-08-31 03:44:08

ydnac
Guest

ratio and proportion

it takes 3 men to dig 2 identical trenches in 5 hours. if all the men works at the same rate, how long will it take 5 men to dig 7 of these trenches?

#2 2014-08-31 03:56:08

David
Member
From: Bumpkinland
Registered: 2014-04-23
Posts: 3,164

Re: ratio and proportion


His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.

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#3 2014-08-31 04:15:45

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: ratio and proportion

Hi ydnac;

I am getting 10.5 hours just like back then.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4 2014-08-31 04:22:41

David
Member
From: Bumpkinland
Registered: 2014-04-23
Posts: 3,164

Re: ratio and proportion

Back then...


His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.

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#5 2014-08-31 04:26:41

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: ratio and proportion

Hi;

Post #3 is me.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#6 2014-08-31 04:49:48

David
Member
From: Bumpkinland
Registered: 2014-04-23
Posts: 3,164

Re: ratio and proportion

O.... Didn't notice that....


His dominion is an everlasting dominion, Which shall not pass away, And His kingdom the one Which shall not be destroyed.

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