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10 men can complete a job in 14 dayshow long will it take 4 men to finish the same job if they work at the same rate?
Ans- It will take 4 men to complete the work in 35 days.
A and b can finish a piece of work in 6 day and 4 days respectively A started the work and worked for 2 days he was then joined by B find the total time taken to finish the work?
A does 1/6 of the work in 1 day. B does 1/4 of the work in 1 day. Assuming there is no synergy, A and B, together do 1/6 + 1/4 = 5/12 of the work in 1 day A worked for 2 days so completed 2*(1/6) = 1/3 of the work. So 2/3 of the work remained to be done by A and B together. They would do it in (2/3) / (5/12) = (2/3) * (12/5) =24/15 = 8/5 = 1.6 days. The total time to finish the work is 2 days + 1.6 days = 3.6 days.
If 6 men took 20 days to plow 1 acre of land how many days will 4 men will take to plow 1 acre of land?
6 men took 20 days so it is 120 man-days worth of work. 4 men will take 120/4 = 30 days to do the work.
8 children and 12 men complete a certain piece of work in 9 days Each child takes twice the time taken by a man to finish the work In how many days will 12 men finish the same work?
13.5 days Rate of work for men = m Rate of work for children = c Therefore if we combine the rates: m + c = 1/9 Since rate = work-done/time Now m = 2c since rate of men is twice the rate of children Similarly, c = m/2 (rearranging the above) Equation becomes: m + m/2 = 1/9 3m/2 = 1/9 3m = 2/9 m = 2/27 This is the rate at which men work. For the men to complete the work, it will take x days. Rate = work/time Rate = work/x Work is 1 Rate is 2/27 2/27 = 1/x x = 27/2 x = 13.5
Is it correct to use much or many in this sentence how much time do you need to finish your work?
it is proper with that wording to use "much." if the sentance was: how many minutes do you need to finish your work? than you would obviously use "many."
