Latest general Aptitude Question SOLUTION: George n mark can paint 720 boxes in 20 days , mark n harry 24, Harry n george 15 days. So total no. Of boxes painted by them ?

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(#M40011260) GENERAL question Keep an EYE

George n mark can paint 720 boxes in 20 days , mark n harry 24,
Harry n george 15 days.
So total no. Of boxes painted by them ?

Asked In general Srivastav Reddy (11 years ago)

Unsolved Read Solution (4)

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Himanshu Dwivedi  (9 years ago)

Capacity of G + M = 720 / 20 = 36
M + H = 720 / 24 = 30
H + G = 720 / 15 = 48
Combined capacity = 2 (G + H + M) = 114
G + H + M = 114 / 2 = 57
Now capacity of G = (G+H+M) - (H + M) = 57 - 30 = 27
M = (G+H+M) - (H + G) = 57 - 48 = 9
H = (G+H+M) - (G + M) = 57 - 36 = 21

Given that G worked for 4 days, and mark for 8 and harry for 8 days
So total work by them = 4 x 27 + 8 x 9 + 8 x 21 = 348

Is this solution Helpfull? Yes (10) | No   

arthi  (10 years ago)

IS this que is right?I hope it is to find the total no of days ?because it is given as 720 boxes
if so ans is...
(g+m)'s 1 day wrk=1/20
(m+h)'s 1 day wrk=1/24
(h+g)'s 1 day wrk=1/15
adding...2(g+m+h)=1/20+1/24+1/15=57/360
(g+m+h)=57/720
so g,m &h finish the work in 57 days

Is this solution Helpfull? Yes (3) | No (6)  

harinee  (8 years ago)

Capacity of G + M = 720 / 20 = 36
M + H = 720 / 24 = 30
H + G = 720 / 15 = 48
Combined capacity = 2 (G + H + M) = 114
G + H + M = 114 / 2 = 57
Now capacity of G = (G+H+M) - (H + M) = 57 - 30 = 27
M = (G+H+M) - (H + G) = 57 - 48 = 9
H = (G+H+M) - (G + M) = 57 - 36 = 21

Given that G worked for 4 days, and mark for 8 and harry for 8 days
So total work by them = 4 x 27 + 8 x 9 + 8 x 21 = 348

Is this solution Helpfull? Yes (1) | No   

KOKILA  (8 years ago)

Capacity of G + M = 720 / 20 = 36
M + H = 720 / 24 = 30
H + G = 720 / 15 = 48
Combined capacity = 2 (G + H + M) = 114
G + H + M = 114 / 2 = 57
Now capacity of G = (G+H+M) - (H + M) = 57 - 30 = 27
M = (G+H+M) - (H + G) = 57 - 48 = 9
H = (G+H+M) - (G + M) = 57 - 36 = 21

Given that G worked for 4 days, and mark for 8 and harry for 8 days
So total work by them = 4 x 27 + 8 x 9 + 8 x 21 = 348

Is this solution Helpfull? Yes | No   

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