- A contractor took 180 days to build a road.He employed 150 men to do that .After 60 days he found that only one fourth of the road could be made.How many additional workers he have to employ to finish the work in time?
- If eight labourers can earn 9000 rs in 15 days ,How many labooures can earn 6300 in 7 days?
- Three people work 8 hrs a day to complete a document in 10 days.If only two of them are working ,how many hours a day should they work to finish the job in 12 days.
- If 18 pencils costs 450 rs how many pencils can be purchased for rs 425?
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