ASVAB (Armed Services Vocational Aptitude Battery)Mathematics Knowledge (MK)Easy
A pilot is calculating the fuel required for a mission. The flight plan indicates a need for 3/4 of the total fuel capacity. If the aircraft has a total fuel capacity of 800 gallons, how many gallons of fuel are needed?
- A200 gallons
- B600 gallons
- C400 gallons
- D800 gallons
Show answer & explanationAnswer & explanation
Correct answer: B. 600 gallons
To find a fraction of a whole number, multiply the fraction by the whole number. (3/4) * 800 = (3 * 800) / 4 = 2400 / 4 = 600 gallons.
Why the other options are wrong
- A. This would be 1/4 of the capacity, not 3/4.
- C. This would be 1/2 of the capacity, not 3/4.
- D. This is the full capacity, not 3/4 of it.
Fraction of a Whole Number
To find a fraction of a whole number, multiply the numerator of the fraction by the whole number and then divide by the denominator.
- It represents a part of a total quantity.
- The word 'of' often indicates multiplication in these problems.
- Can be visualized as dividing the whole into parts and taking a certain number of those parts.
Memory trick: Fraction of 'of' means multiply to get the part.