Mathematics, 10.10.2019 10:30 Lorettareneemills
Ram can complete the work in 10 hours, ajit in 12 hours and suresh in 15 hours. all of them began the work together, but ram had to leave the work after 2 hours of the start and ajit left 3 hours before the completion of the work. how long did the work last? select one:
a. 7 hrs
b. 8 hrs
c. 9 hrs
d. cannot be determined
Answers: 3
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