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How much of a job can the first painter complete if he can do it in twelve hours?

1/12 of the job per hour

To determine how much of the job the first painter can complete per hour, it is essential to divide the total job into manageable parts based on the time required to complete it. Since the painter can finish the entire job in twelve hours, we calculate his hourly rate of work by taking the reciprocal of the total hours.

The total job is considered as one whole unit (1). If the painter takes twelve hours to complete the entire job, each hour he finishes a fraction of the job equal to 1/12, reflecting the time it takes to complete the whole job.

Thus, in one hour, the painter completes 1/12 of the job. This calculation is based on the understanding that if a task takes T hours, the work done per hour is represented by 1/T, leading to the conclusion that the first painter completes 1/12 of the job every hour.

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1/10 of the job per hour

1/8 of the job per hour

1/6 of the job per hour

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