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प्रश्न
Ten men, working for 6 days of 10 hours each, finish `5/21` of a piece of work. How many men working at the same rate and for the same number of hours each day, will be required to complete the remaining work in 8 days?
उत्तर
Work does one =`5/21`
Remaining work =`1-5/21=16/21`
`5/21` of a work can be done in 6 days working 10 hours a day by = 10 m
1 work can be done in 6 days working 10 hours a day by =`(10xx21)/5`
1 work can be done in 1 day working 10 hours a day by =`(10xx21xx6)/5` men
`16/21` work can be done in 8 days working 10 hours a day by =`(10xx21xx6xx16)/(5xx21xx8)` = 24 men
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