A working alone can finish a job in 18 days and B alone can do it in 15 days. If A starts the work alone and is joined by B after 7 days, then the time taken by them to complete the remaining work is?
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Answer: alone can complete a piece of work in 18 days and B alone in 15 days, B alone worked at it for 10 days and then left the work, In how many more days will A alone complete the remaining work ?
A) 5 days
B) 512 days
C) 6 days
D) 8 days
Correct Answer:
C) 6 days
Description for Correct answer:
B's 10 days work=6×10=60 units
work left =90−60=30units
A does 30 units in = 305 = 6 days
Step-by-step explanation:
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okay so this is tricky btw
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