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Cocubes Test
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If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
40 30 45 60
Vaishali
07 Sep
211 Answers
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Nikhil
08 Sep
60
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Neha
08 Sep
A +B = 15 days
B alone = 20 days ( taking LCM of 15 n 20 the rate per day of A n B toghether is 4 while that of B alone is 3, so A's rate per day is 4-3 = 1)
therefore, A alone will take 60 days to complete the work.
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Bandaru
07 Sep
60 days
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Amit
07 Sep
60 days
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Rajesh
01 Sep
60
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Pradeepkumar
30 Aug
60
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Arafath
25 Aug
60
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MP
Mamidi
15 Aug
(15*20)/(20-15)=60 days A alone can do a work
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prabhav
padam
kamal
chandrika
saddam
mahesh
rana
ramya
pankaj
veera
prabhav
padam
kamal
chandrika
saddam
rana
ramya
pankaj
veera
mahesh
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GS
Gurismran
23 Jul
1/a+1/20=1/15 1/a=1/15-1/20=1/60 thus a takes 60 days
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Sweety
27 Jun
60
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