ASVAB (Armed Services Vocational Aptitude Battery)Mathematics Knowledge (MK)Medium
A convoy of vehicles is traveling at an average speed of 40 miles per hour. If they need to cover a total distance of 280 miles, how long will the journey take?
- A5 hours
- B8 hours
- C7 hours
- D6 hours
Show answer & explanationAnswer & explanation
Correct answer: C. 7 hours
To find the time taken, use the formula: Time = Distance / Speed. So, 280 miles / 40 mph = 7 hours.
Why the other options are wrong
- A. This would mean a distance of 200 miles (5 * 40).
- B. This would mean a distance of 320 miles (8 * 40).
- D. This would mean a distance of 240 miles (6 * 40).
Distance, Rate, Time (Solving for Time)
The relationship between distance, rate (speed), and time is expressed by the formula D = R * T. To find time, rearrange the formula to T = D / R.
- Distance is the total length traveled.
- Rate is the speed at which the distance is covered.
- Time is the duration of the travel.
Memory trick: Time is Distance over Rate, a journey's fate.