A, Band C can finish a piece of work in four days and A can do it in 9 days and B in 18 days. How many days will be taken to C to do it
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1/A+1/B+1/C=1/4
1/9+1/18+1/C=1/4
3/18+1/C=1/4
1/C=1/12
C can finish a piece of work in 12 days
1/9+1/18+1/C=1/4
3/18+1/C=1/4
1/C=1/12
C can finish a piece of work in 12 days
Tabrej123:
Thanx a lot Drishya. It is write answer
this is wrong answer
this one is right
I didn't multiple 3 with 4
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