A can complete a work in 20 days; B alone can
complete it in 30 days. After how many days
should A leave so that the work is completed in
24 days?
Select one:
a. 20 days
O b. 16 days
O c. 8 days
O d. 4 days
Answers
Answered by
0
Answer:
I think option c
Step-by-step explanation:
hope this help you
Answered by
4
Answer:
Answer=4 days.
Step-by-step explanation:
Work of A per day is 1/20
Work of B per day is 1/30
Together in 7 days is
7/20 +7/30=(21+14)/60=35/60
Balance work is 25/60=5/12
C can do 5/12 work in 10 days
Full work =(12/5)*10=24 days.
24=4 days.
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