Cecilia leaves home for school on her bike at 9:05 AM, riding at an average speed of 10 miles per hour. Fifteen minutes later, her motherrealizes that Cecilia forgot to take her lunch. Cecilia's mother immediately getsinto her car and drives after Cecilia at an average speed of 25 miles per hour. Atwhat time will Cecilia's mom catch up to her?
A. 9:15 AM
B. 9:20 AM
C. 9:26 AM
D. 9:30 AM
Answer:D
Cecilia leaves home for school on her bike at 9:05 AM, riding at an average speed of 10 miles per hour. Fifteen minutes later, her motherrealizes that Cecilia forgot to take her lunch. Cecilia's mother immediately getsinto her car and drives after Cecilia at an average speed of 25 miles per hour. Atwhat time will Cecilia's mom catch up to her?
A. 9:15 AM B. 9:20 AM C. 9:26 AM D. 9:30 AM
Explanation: D