A is thrice as good as b is therefore able to finish a piece of work in 60days less than
b. Find the time in which they can do it, working together.
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Answer:
22.5 Days
Step-by-step explanation:
Assume A takes alone x days
Then B takes = 3x Days
A takes 3x-x = 2x less days
2x = 60
x = 30
A = 30 B = 90
1/T = 1/30 + 1/90
1/T = 4/90
T = 90/4 = 45/2 = 22.5
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