Sanjay and Ranbir can do a piece of work in 45 and 40 days respectively. They began the work together but Sanjay leaves after some days and Ranbir finished the remaining work in 23 days. After how many days did Sanjay leave?
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Step-by-step explanation:
Snajay left after 9 days.
Step-by-step explanation:
Productivity of Sanjay = 1/45 work/day =
Productivity of Ranbir = 1/40 work/day
Productivity of Both working together =
1/45 +1/40
= 17/360 per day. =
Ranbir did 23 days of work.
Thus the total amount of work will be:
23 x 1/40 = 23/40 (Amount of work) =
Remaining work = 1- 23/40 = 17/40. =
This is done by Sanjay and Ranbir together.
Number of days they worked together = (17/40) / (17/360) = 9 Days
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