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A and B can do a piece of work in 12 days, B and C in 15 days, C and A in 20 days. How much time will A alone take to finish the work |
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Answer» Answer: 30 DAYS. Step-by-step explanation: 2(A+B+C) 1 DAY WORK=1 UPON 12 + 1 UPON 15 +1 UPON 20. 2(A+B+C)1 DAY WORK=12 UPON 60=1 UPON 5. (A+B+C)1 DAY WORK=1 UPON 5INTO2=1 UPON 10. A'S 1 DAY WORK=(A+B+C)1 DAY WORK-(B+C)1 DAY WORK. A'S 1 DAY WORK=1 UPON 10-1 UPON 15. A'S 1 DAY WORK=1 UPON 30. NO. OF DAYS=1 UPON 1 DAY WORK. NO. OF DAYS=1/1 UPON 30. NO. OF DAYS=30 DAYS. ANS=A ALONE WILL COMPLETE THE WORK IN 30 DAYS. THANK YOU. |
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