Quantitative Aptitude :: Time and Work - Discussion
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Choose the correct option.
4 men can check exam papers in 8 days working 5 hours regularly. What is the total hours when 2 men will check the double of the papers in 20 days?
A8 hrs.
B9 hrs.
C4 hrs.
DNone of these
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STEP-BY-STEP
men*Day*time=4*8*5=160 unit amount of work
2*20*x = 320 unit amount of work
x = 8 hours
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STEP-BY-STEP
For the single unit for single unit work
4*8*5=160
The work is double
160*2=320
Now, 2 men check the paper in 20 days in x hours
Therefore, 2*20*x=320
x=8 hours. Answer......
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