28. A and B can finish a piece of work in 20 days .B and C
in 30 days and C and A in 40 days.
In how many days will A alone finish the job
(a) 48
(b) 34 2/7
(c) 44
(d) 45
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Answer / sagar rath
A+B ONE DAY WORK=1/20
B+C ONE DAY WORK=1/30
(A+B)-(B+C)=1/60=A-C
A-C=1/60-------------(1)
A+C=1/40-------------(2)
ON SOLVING BOTH WE GET A=48 DAYS.
| Is This Answer Correct ? | 32 Yes | 4 No |
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