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17 vote

 A can do a piece of work in 4hrs.B and C together can do it 3 hrs while A and C can do it in 2 hrs how long it will take for B?

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 A can do a piece of work in 4hrs.B and C together can do it 3 hrs while A and C can do it in 2 hrs how long it will take for B?

A). 8

B). 10

C). 12

D). 24


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2 answers

20 vote
Answered by on | Votes 20 |

12



A’s 1 hr

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20 vote
Answered by on | Votes 20 | | Last Updated: 2021-09-05 13:22:05

3=A=4hrs

4=B+c=3hrs     TW.=12

6=A+c=2hrs

C=3,B=1,A=3

B=12/1=12hrs

So here we can say B alone Takes 12hrs to do whole work . 

I hope u will understand




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