Convert Units Using Ratio Reasoning Practice Test

$31,680\text{ ft/s}$ because $60\times 5280=31,680\text{ ft/s}$

$88\text{ ft/s}$ because $60\dfrac{\text{mi}}{\text{hr}}\times\dfrac{5280\text{ ft}}{1\text{ mi}}\times\dfrac{1\text{ hr}}{3600\text{ s}}=88\dfrac{\text{ft}}{\text{s}}$

$1.14\text{ ft/s}$ because $60\times\dfrac{3600}{5280}=1.14\text{ ft/s}$

$105.6\text{ ft/s}$ because $60\times\dfrac{5280}{3600}=105.6\text{ ft/s}$