Deepa and Arun can do a piece of work in 20 days and 30 days respectively. They work together and Deepa leaves 5 days before the work is finished. Arun finished the remaining work alone. In how many days is.the total work finished?
Answers
Answered by
8
Days Deepa take to do work - 20 days
Days Arun take to do work - 30 days
days Arun left before the work is finished - 5 days
total work taken =30+25
=55
Answered by
8
Answer:
Step-by-step explanation:
Deepa =20 days
Arun =30 days
Take LCM for 20 and 30=60
Deepa=3 units per day
Arun=2 units per day
If two persons to finish the work=(1/20+1/30)
=1/12
Deepa leaves after 7 days(12-5)
7 days work =35
Remaining work=25
Arun finish the remaining work=25/2
=12.5 days
Total days to complete the work=7+12.5=19.5 days
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