Discussion :: Time and Work

How many workers are required for completing the construction work in 10 days?
I .20% of the work can be completed by 8 workers in 8 days.
II. 20 workers can complete the work in 16 days.
III.Oneeighth of the work can be completed by 8 workers in 5 days.
Answer : Option E
Explanation :
I.\( \frac { 20 } {100 }\)work can be completed by (8 x 8) workers in 1 day.
Whole work can be completed by (8 x 8 x 5) workers in 1 day.
=\( \frac { 8*8*5 } {10 }\)workers in 10 days = 32 workers in 10 days.
II. (20 x 16) workers can finish it in 1 day
.\(\frac { (20*16) } { 10 }\)workers can finish it in 10 days.
32 workers can finish it in 10 days.
III.\( \frac { 1 } { 8 } \)work can be completed by (8 x 5) workers in 1 day.
Whole work can be completed by (8 x 5 x 8) workers in 1 day.
=\( \frac { 8*8*5 } {10 }\)workers in 10 days = 32 workers in 10 days.
Any one of the three gives the answer.
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