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1]if it takes 10 men to build 120 houses in 60 hrs,how long will it take 5 men to build 60 houses
2]if it takes martha 2 days to do a job and tina 3 days to do the same job,how long will it take both of them.
i need help not just for these questions but all.so i need a general explanation of questions like this
2]if it takes martha 2 days to do a job and tina 3 days to do the same job,how long will it take both of them.
i need help not just for these questions but all.so i need a general explanation of questions like this