Math word problem

Question

Marie rode her bike 325 kilometers in 20 hours last month. Tamara rode her bike 255 kilometers in 15 hours last month. Are these rates proportional? 

 

A. No, Marie's rate is 16.25km/h andTamara's rate is 17 km/h

 

B. Yes, to find both rates, you need to divide the distance by the time.

 

C. No, Marie's distance and time are greater than Tamara's distance and time

 

D. Yes, Marie's and Tamara's rates are almost the same.

Answer 1

You need to compute the "unit rate" of Marie and Tamara:

 

Unit Rate Marie = (325 km) / (20 hours) = 16.25 km/hour

 

Unit Rate Tamara = (255 km) / (15 hours) = 17 km/hour

 

The answer is A. No, Marie's rate is 16.25km/h and Tamara's rate is 17 km/h