Answer: Fourth option is correct.
Step-by-step explanation:
Since we have given that
thirty miles over three gallons
Unit rate would be \(\dfrac{30}{3}=10\) miles per gallon.
three gallons over thirty miles
Unit rate would be \(\dfrac{3}{30}=0.1\) miles per gallon.
four gallons over sixty miles
Unit rate would be \(\dfrac{4}{60}=0.67\) miles per gallon.
sixty miles over four gallons
Unit rate would be \(\dfrac{60}{4}=15\) miles per gallon.
Hence, Fourth option is correct.
