Question

Difficulty: MediumTime Measurements and Calculations

A military quartermaster is evaluating the transit times of four different supply routes to an outpost. Arrange the transit times from shortest to longest.

  1. 1Route Y: 11 hour and 2222 minutes
  2. 2Route W: 1.41.4 hours
  3. 3Route X: 5,1005,100 seconds
  4. 4Route Z: 1121\frac{1}{2} hours

Answer

The correct order from shortest to longest is: Route Y, Route W, Route X, Route Z.
By converting all durations into minutes, we can compare them accurately. Route Y takes 82 minutes, Route W takes 84 minutes, Route X takes 85 minutes, and Route Z takes 90 minutes. Placing these values in ascending mathematical order gives the correct sequence.

Step-by-Step Solution

1
Identify a common unit for comparison.
Minutes is chosen as the standard unit for all conversions.
Converting all times to a single unit prevents errors when comparing mixed formats.
2
Convert the duration of Route Y to minutes.
11 hour + 2222 minutes = 60+22=8260 + 22 = 82 minutes.
There are 6060 minutes in an hour, so we add 6060 to the remaining 2222 minutes.
3
Convert the duration of Route W to minutes.
1.4×60=841.4 \times 60 = 84 minutes.
Decimal hours are converted to minutes by multiplying the decimal value by 6060.
4
Convert the duration of Route X to minutes.
5,100÷60=855,100 \div 60 = 85 minutes.
Because there are 6060 seconds in a minute, we divide the total seconds by 6060.
5
Convert the duration of Route Z to minutes.
1.5×60=901.5 \times 60 = 90 minutes.
Fractional hours (1121\frac{1}{2} hours is 1.51.5 hours) are multiplied by 6060.
6
Arrange the converted times in ascending order.
8282 minutes (Route Y), 8484 minutes (Route W), 8585 minutes (Route X), 9090 minutes (Route Z).
The question specifically asks for the transit times from shortest to longest.

Key Concept

Converting various time formats (decimal hours, fractional hours, seconds, and mixed units) into a standard unit for objective numerical comparison.
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