A naval supply ship travels 150 nautical miles in 10 hours, and then travels an additional… — Armed Services Vocational Aptitude Battery (ASVAB)

A naval supply ship travels $150$ nautical miles in $10$ hours, and then travels an additional $90$ nautical miles in $5$ hours. What is the ship's average speed for the entire trip, in knots (nautical miles per hour)?

Answer: 16 knots

Answer

16 knots

The overall average speed is calculated correctly by finding the total distance (

150 + 90 = 240

nautical miles) and dividing it by the total time (

10 + 5 = 15

hours). This calculation (

240 \div 15

) results in exactly

16

knots.

Step-by-Step Solution

Calculate the total distance traveled for the entire trip.

150 + 90 = 240

nautical miles

Finding average speed requires knowing the complete distance covered across all segments of the trip.

Calculate the total time taken for the entire trip.

10 + 5 = 15

hours

Finding average speed requires knowing the total elapsed time.

Divide the total distance by the total time.

240 \div 15 = 16

knots

The formula for average speed is Total Distance divided by Total Time.

Key Concept

Average speed is calculated by dividing the total distance traveled by the total time taken.

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

Topics

More questions from this topic