Eighteen persons working 8 hours a day can complete 3 units of work in 10 days How many days are req...........

Quantitative Aptitude (CGL) Time and work

Eighteen persons working 8 hours a day can complete 3 units of work in 10 days. How many days are required by 25 persons to

complete 5 units of work working 6 hours a day?

This questions was previously asked in

SSC CGL 13th August 2021 Shift-2

- Step 1: Calculate the total work done by 18 persons in 10 days:

- Total work = 18 persons * 8 hours/day * 10 days = 1440 person-hours for 3 units of work.

- Step 2: Calculate work per unit:

- Work for 1 unit = 1440 person-hours / 3 units = 480 person-hours/unit.

- Step 3: Determine work needed for 5 units:

- Total work = 5 units * 480 person-hours/unit = 2400 person-hours.

- Step 4: Calculate days for 25 persons working 6 hours a day:

- Daily work = 25 persons * 6 hours = 150 person-hours.

- Required days = 2400 person-hours / 150 person-hours/day = 16 days.

- Conclusion:

- The correct option is Option 2: 16 days

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