Final answer:
Henry ran 3 laps in a total of 100 minutes, but the times for the individual laps are missing in the question. To determine how long the third lap took, we would subtract the combined times of the first two laps from the total. We need additional information to provide a precise answer.
Step-by-step explanation:
Calculating Time for a Race
Henry completed a road race consisting of three laps in 1 hour and 40 minutes. This time converts to 100 minutes in total. Unfortunately, the individual times for the first two laps were not provided in the question. Therefore, to find the time Henry took to run the third lap, we need to know the times taken for the first and second laps. As these specifics were not given, we cannot proceed with a precise calculation. Typically, one would subtract the sum of the first two lap times from the total time to find the duration of the third lap.
For example: If the first lap took Henry 30 minutes and the second lap took 35 minutes, then the third lap would have taken 100 - (30 + 35) = 35 minutes.
The question seems to have some typos or missing information which prevents us from giving a complete answer. Please provide the missing times for the first and second laps, and we will be able to assist you better.