Civil Service Exam Reviewer · Word Problems · hard
Mila leaves a town driving at 50 km/h. 1 hour(s) later, Sofia leaves the same town on the same road at 90 km/h. How long after Sofia starts will Sofia catch up?
- 1 hour and 15 minutes
- 2 hours and 15 minutes
- 33 minutes
- 2 hours
Answer
A. 1 hour and 15 minutes
Solution
Head start = 50 × 1 = 50 km. Gap closes at 90 − 50 = 40 km/h. Time = 50 ÷ 40 = 1 hour and 15 minutes.
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