Question
Walking at the rate of 4 kmph a man covers certain distance in 2 hrs 45 min. Running at a speed of 16.5 kmph the man will cover the same distance in how many minutes ?
Answer: Option C
Answer: (c)2 hours 45 minutes= $(2 + 45/60)$ hours= $(2 + 3/4)$ hours = $11/4$ hoursDistance = Speed × Time= 4 × $11/4$ = 11 km.Time taken in covering 11 km at 16.5 kmph= $11/{16.5}$ hour= $({11 × 10 × 60}/165)$ minutes= 40 minutes
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Answer: (c)2 hours 45 minutes= $(2 + 45/60)$ hours= $(2 + 3/4)$ hours = $11/4$ hoursDistance = Speed × Time= 4 × $11/4$ = 11 km.Time taken in covering 11 km at 16.5 kmph= $11/{16.5}$ hour= $({11 × 10 × 60}/165)$ minutes= 40 minutes
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