Question 7 A cyclist travels from Village A to Village B, which is 48 km away, at a speed...
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Question 7
A cyclist travels from Village A to Village B, which is 48 km away, at a speed of 16 km/h. After reaching Village B, she takes a 45-minute break before returning to Village A at a speed of 12 km/h. What is the total time spent on the entire trip?
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Answer: A. A) 7 hours 45 minutes
Time to Village B = 48 / 16 = 3 hours. Return time = 48 / 12 = 4 hours. Break = 45 minutes. Total time = 3 + 4 + 0.75 = 7 hours 45 minutes.
Step-by-step Derivation:
Step 1: Forward trip time = 48 km / 16 km/h = 3 hours.
Step 2: Return trip time = 48 km / 12 km/h = 4 hours.
Step 3: Break duration = 45 minutes.
Step 4: Total duration = 3h + 4h + 45m = 7 hours 45 minutes.