please solve this, of you can it means you are smart it's a test.
Topic: Proportions
it takes 5 men 15 hours to build a brick wall , how much time would it take for:
a) 1 man
b) 3 men
ammaraheshal:
and equations too please
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proportion for (a):-let x be the no of hours taken by 1 man
=> 5:15::1:x
=> 5x=15
=> x=3hours. . ...............answer
(b)let x be the no of hours taken by 3men
=> 5:15::3:x
=> 5x=15×3
=> x=9 hours. .... ........... .........answer
=> 5:15::1:x
=> 5x=15
=> x=3hours. . ...............answer
(b)let x be the no of hours taken by 3men
=> 5:15::3:x
=> 5x=15×3
=> x=9 hours. .... ........... .........answer
no that's not the answer i tried but it was marked wrong
but thanks anyways
ok
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