To find out how long it takes the robot to complete each task, we can follow these steps:

Step 1: Define the variables.

Let $t$ be the time (in hours) it takes the robot to complete one task.

The robot completes 3 tasks in $\frac{5}{6}$ of an hour.

Step 2: Set up the equation.

If the robot completes 3 tasks in $\frac{5}{6}$ hours, the time for one task is:

$t = \frac{\frac{5}{6}}{3}$

Step 3: Solve for $t$.

To divide by 3, multiply by the reciprocal:

$t = \frac{5}{6} \times \frac{1}{3} = \frac{5}{18} \, \text{hours}$

Thus, each task takes $\frac{5}{18}$ hours, or approximately 16.67 minutes.

Would you like more details on this or have any questions?

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Here are 5 related questions:

1. How long would it take the robot to complete 10 tasks at this rate?
2. How many tasks can the robot complete in 1 hour?
3. If the robot works for 2 hours, how many tasks will it complete?
4. If the time per task decreases by half, how long would it take to complete 3 tasks?
5. What if the robot had to complete 6 tasks in the same amount of time?

Tip: When dividing fractions, remember to multiply by the reciprocal of the divisor.