ASVAB (Armed Services Vocational Aptitude Battery)Mathematics Knowledge (MK)Medium
A pilot is calculating fuel consumption. If an aircraft burns 25 gallons of fuel per hour, how many gallons will it burn in 3 hours and 30 minutes?
- A75 gallons
- B87.5 gallons
- C90 gallons
- D82.5 gallons
Show answer & explanationAnswer & explanation
Correct answer: B. 87.5 gallons
First, convert 3 hours and 30 minutes to hours: 3.5 hours. Then, multiply the fuel burn rate by the total time: 25 gallons/hour * 3.5 hours = 87.5 gallons.
Why the other options are wrong
- A. This is the consumption for exactly 3 hours (25 * 3).
- C. This is an incorrect calculation, possibly 25 * 3.6 or 25 * 3 + 15.
- D. This is an incorrect calculation, possibly 25 * 3.3.
Rate Calculation
Determining an amount based on a given rate and a quantity of time or other units.
- Rate × Time = Total Amount.
- Ensure units are consistent (e.g., hours and hours).
- Often involves converting mixed time units to a single unit.
Memory trick: Rates are the Road to Results.