Question:
A cyclist covers a distance of 750 m in 2 min 30 sec. What is the speed in km/hr of the cyclist?
A cyclist covers a distance of 750 m in 2 min 30 sec. What is the speed in km/hr of the cyclist?
Updated On: Mar 6, 2025
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The Correct Option is B
Solution and Explanation
Finding Speed in km/hr
Given Data:
- Distance covered = 750 meters
- Time taken = 2 minutes 30 seconds = 2.5 minutes
Step 1: Convert Distance to Kilometers
\[ 750 \text{ meters} = \frac{750}{1000} \text{ km} = 0.75 \text{ km} \]
Step 2: Convert Time to Hours
\[ 150 \text{ seconds} = \frac{150}{3600} \text{ hours} = \frac{5}{120} = \frac{1}{24} \text{ hours} \]
Step 3: Compute Speed
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{0.75}{\frac{1}{24}} \]
Multiplying:
\[ 0.75 \times 24 = 18 \text{ km/hr} \]
Final Answer:
The correct answer is (B) 18 km/hr.
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