30 men can finish a piece of work in 28 days.How many days will be taken by 21 men to finish it ?
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Answered by
13
no. of men no of days
30 28
21 x ( since it is inverse proportion no. of days increases )
30:21 proportionate to x:28
30 * 28= x*21
30 X 28/ 21 = 10 * 4 = 40
therefore, 21 men can finish a piece of work in 40 days
30 28
21 x ( since it is inverse proportion no. of days increases )
30:21 proportionate to x:28
30 * 28= x*21
30 X 28/ 21 = 10 * 4 = 40
therefore, 21 men can finish a piece of work in 40 days
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Answered by
5
Heya !!!
This is Your Answer.
Given :-
30 men can finish a piece of work in 28 days.
How many days will be taken by 21 men to finish the same?
We know that if there will be less men, more time will be taken.
So, this is a case of inverse proportion.
In inverse proportion ..
x1 X y1 = x2 X y2
=> 30 X 28 = 21 X y
=> y = 28/21 X 30
=> y = 40.
Hence, 21 men will take 40 days to do the same work.
Hope It Helpss
This is Your Answer.
Given :-
30 men can finish a piece of work in 28 days.
How many days will be taken by 21 men to finish the same?
We know that if there will be less men, more time will be taken.
So, this is a case of inverse proportion.
In inverse proportion ..
x1 X y1 = x2 X y2
=> 30 X 28 = 21 X y
=> y = 28/21 X 30
=> y = 40.
Hence, 21 men will take 40 days to do the same work.
Hope It Helpss
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