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Online Prep Test
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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PO
Pawan
21 Sep
60
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KD
Keerthireddy
20 Sep
D
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AB
Aswini
18 Sep
A+B=1/15,
B=1/20, A+B-B=A=1/15-1/20 = 1/60
A= 60 days
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DB
Dhrub
18 Sep
60
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RR
Rokesh
18 Sep
A+B=15,B=20
(1/20-1/15)=1/60 B Complete the work in 60 days
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SS
Shlok
17 Sep
60
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SR
Sineha
14 Sep
60
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VK
Valavadhula
13 Sep
a=1/15-1/20=1/60=60days
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KG
Kantheti
13 Sep
a+b=1/15; b=1/20;
substitute b in a we get a=60
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SS
Soumyasrireddy
13 Sep
1/a+1/20=1/15
1/a=1/15-1/20
1/a=1/60
a=60
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GV
Gunuguntla
12 Sep
60
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KS
Kuleshwar
12 Sep
Ans. - 60 days
Solution - let A can complete the work in x days.
then, 1/x +1/20 = 1/15
x=60 days
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NP
Nitai
11 Sep
60 days
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BS
Bhavana
09 Sep
30
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TS
Tallapureddy
09 Sep
60
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BP
Bhavagna
08 Sep
60
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AA
Arunima
08 Sep
60
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RP
Ramini
08 Sep
60 days
2
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AS
Adyasa
08 Sep
60
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SB
Shreya
08 Sep
A+B=1/15
B=1/20
(1/15-1/20)=60
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