Skylined
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Registered: 27th Sep 05
Location: Sideways, Surrey
User status: Offline
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If a man mows the lawn in 1.5 hours
His wife mows the same lawn in 3 hours 
If they both mow the lawn together how long will it take?
There is a genuine answer, not tricks about only 1 lawn mower etc
Any ideas?...... i got it 
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Paul_J
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Registered: 6th Jun 02
Location: London
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1 hr? I didn't put much thought into this answer... just looked logical.
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Neo
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Registered: 20th Feb 07
Location: Essex
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lol me being stupid, yeah 1 hour
[Edited on 24-02-2009 by Neo]
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C2RL R
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Registered: 28th Mar 02
Location: Redcliffe, QLD
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2.25 hours
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All Torque
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Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
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1.75 hours
Half both times as its half the work for each then add them together.
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Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
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3hrs still
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Neo
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Registered: 20th Feb 07
Location: Essex
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How i worked it out as 1hr
Split the garden into 3 pieces, the man takes half hour for each piece
Woman takes 1 hr for each piece
In 1 hour man has done 2 and woman the final 3rd
Illustrated in pretty picture = 
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Hammer
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Registered: 11th Feb 04
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The man will have completed 2/3 after an hour and the woman will have completed 1/3.
2/3 + 1/3 = 1 Fully mowed lawn.
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Hammer
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Registered: 11th Feb 04
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However the wording of the 'riddle' would suggest they don't have seperate lawn mowers and he'll be dragging his fat arsed wife about with him so it'll probably take 2 days if you take into account the bitch moaning etc...
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John
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Registered: 30th Jun 03
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These are brilliant for seeing how people think.
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Paul_J
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Registered: 6th Jun 02
Location: London
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quote:
Originally posted by Neo
How i worked it out as 1hr
Split the garden into 3 pieces, the man takes half hour for each piece
Woman takes 1 hr for each piece
In 1 hour man has done 2 and woman the final 3rd
Illustrated in pretty picture =
How I worked it out was...
I replaced the Area (x) with a number... 10 (this can be anything though)
divided 10 by 1.5 = 0.666666667 (or 2/3) of the area per hour
divide 10 by 3 = 0.333333333 (1/3) of the area per hour.
Therefore in 1 hour ... they'll have mowed the whole lot.
but yeh our logic is the same.
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Paul_J
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Registered: 6th Jun 02
Location: London
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To be honest though, why do they both need to mow the lawn together, when it's already been mowed TWICE 
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Neo
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Registered: 20th Feb 07
Location: Essex
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quote:
Originally posted by Paul_J
To be honest though, why do they both need to mow the lawn together, when it's already been mowed TWICE
I was more trying to believe a woman would even mow a lawn  And spend 3hrs on it ! Back inside doing the ironing and leave the difficult jobs to the men !
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BigSte
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Registered: 27th Aug 02
Location: Sheffield
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some answers are funny, the bloke could do it all himself in 1.5 hours so why on earth would it take him longer when he has help!
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Hammer
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Registered: 11th Feb 04
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Depends what they're mowing Ste
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Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
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I figured it'd still take 3hrs if they did it together because he'd be sat chillin in a deck-chair suppin a few beers.
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BigSte
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Registered: 27th Aug 02
Location: Sheffield
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ohhhhhhhhhh ye
that tat is mint btw
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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I would take longer than if just either of them did it. As he'd do the mowing, and she'd be stood there telling him he isnt doing it right.
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johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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quote:
Originally posted by Cosmo
I would take longer than if just either of them did it. As he'd do the mowing, and she'd be stood there telling him he isnt doing it right.
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Paul_J
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Registered: 6th Jun 02
Location: London
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whats the answer then skylined?
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BigSte
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Registered: 27th Aug 02
Location: Sheffield
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dont think anyone can argue with ur answer paul tbh
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Matt L
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Registered: 17th Apr 06
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if they did it together with only 1 mower then surely it depends who is using the mower
if the man has it:1.5 hours
if the woman has it 3 hours
cant see how it would be anyquicker :S
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Paul_J
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Registered: 6th Jun 02
Location: London
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You didn't read it did you Matt
he says 'no tricks about only being 1 mower'.
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Matt L
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Registered: 17th Apr 06
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nah didnt really read it fully. *had another think*
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johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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This was easy
If the guy can mow the lawn in 1.5 hours he mows 1/3 of the lawn every half hour.
The woman can mow the lawn in 3 hrs so she mows 1/3 of the lawn every hour.
If they both start at the same time, in 1 hour the guy will have done 2/3 of the lawn and in that hour the woman will have managed to mow the remaining 1/3
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