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Salil and Aarav can do a piece of work in 45 and 40 days respectively. They began the work together but Salil leaves after some days and Aarav finished the remaining work in 23 days.
After how many days did Salil leave?
Salil's speed = (1 work/45 days)
Aarav's speed = (1 work/40 days)
((1/45)+(1/40))*x + (1/40)*23 = 1
Therefore after 9 days salil leaves.
One day work of Salil and Aarav are 1/45 and 1/40 respectively.
One day work of both together=1/45 + 1/40
Let Salil and Aarav work together for x days
Work completed by both in x days=17 X/360
This remaining work was completed by Aarav in 23 days.
and one day work of Aarav is 1/40
Work done by Aarav in 23 days=23/40=(360-17X)/360
Rahul and Maneesh working separately can do a piece of work in 9 days and 12 days respectively. If they work for a day alternately, Rahul beginning, in how many days, the work will be completed?
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
Dhoni can do a piece of work in 80 days. He works at it for 10 days and then Virat alone finishes the work in 42 days.
How many number of days would be taken by the two together to finish the work.
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
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