# Sample quiz on rates Main home here.

1. A rate is $\cdots$?
a comparison of two quantities with different units
a comparison of two quantities with the same units
a sum of two quantities measured in the same units
a product of two quantities measured in the same units
2. Which of these is an example of a rate?
speed
distance
time
temperature
3. Every week, a man makes $\$800$after working for$40$hours. His hourly wage is$\cdots$?$\$60$/hour
$\$40$/hour$\$20$/hour
$\$15$/hour 4. If only money is considered, which of these two pays better:$\$400$ for $25$ hours or $\$300$for$20$hours?$\$400$ for $25$ hours
$\$300$for$20$hours none of them not sure 5. A car travels$120$km in$90$minutes. What is its speed?$\frac{120}{90}$km/hour$75$km/hour$\frac{1}{80}$km/hour$80$km/hour 6. A car travels at$75$km/hour. How long will it take to cover a distance of$300$km?$2$hours$4$hours$6$hours$8$hours 7. Two-thirds of a certain job can be completed in$24$minutes. How long will it take to complete the entire job working at the same rate?$24$minutes$30$minutes$36$minutes$42$minutes. 8. Water leaks from a tank at a rate of$0.5$litres per minute. At this rate, how long will it take to empty the entire$150$L tank?$7.5$minutes$7.5$hours$5$minutes$5$hours 9. A man's hourly wage is$\$25$/hour. For how many hours should he work in order to earn $\$500$?$50$hours$40$hours$20$hours$10$hours 10. If one-fifth of a job can be completed in$20$minutes, how long will it take to complete the entire job, working at the same rate?$20$minutes$25$minutes$100$minutes$120\$ minutes