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A car covers a certain distance in 2 h a...

A car covers a certain distance in 2 h at 10 km/h. in what time can it cover the same distance, if it travels at 20 km/h?

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To solve the problem, we will follow these steps: ### Step 1: Calculate the distance covered by the car. The formula to calculate distance is: \[ \text{Distance} = \text{Speed} \times \text{Time} \] Given: - Speed = 10 km/h - Time = 2 hours Using the formula: \[ \text{Distance} = 10 \text{ km/h} \times 2 \text{ h} = 20 \text{ km} \] ### Step 2: Determine the time taken to cover the same distance at a different speed. Now, we need to find out how long it takes to cover the same distance (20 km) at a speed of 20 km/h. Using the formula for time: \[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} \] Given: - Distance = 20 km - Speed = 20 km/h Using the formula: \[ \text{Time} = \frac{20 \text{ km}}{20 \text{ km/h}} = 1 \text{ hour} \] ### Final Answer: The car can cover the same distance in **1 hour** if it travels at 20 km/h. ---
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PEARSON IIT JEE FOUNDATION-TIME AND DISTANCE -Test Your Concepts (Very Short Answer Type Questions)
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  2. What is the average speed of the car if it travels a distance of d km ...

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  3. A car covers a certain distance in 2 h at 10 km/h. in what time can it...

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  4. If a car travels a distance of 20 km in 2 h and another 10 km in 3 h, ...

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  5. A train 250 m long is running at a uniform speed of 25 m/s, then the t...

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  6. A train 300 m long is running at a uniform speed of 20 m/s, then the t...

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  7. The time taken for two trains of lengths, a metres and b metres, runni...

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  8. Two bodies move away from each other with speeds of 10 km/h and 5 km/h...

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  9. The time taken by a train l metres long running at x km/h to pass a ma...

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  10. The time taken by the faster train of length a metres running at x km/...

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  11. A train 120 m long is running with a speed of 64 km/h . What time is t...

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  12. If the speed of a boat downstream is x km/h and the speed upstream is ...

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  13. The speed of a boat in still water is 9 km/h and the speed of the stre...

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  14. If the speed of a boat in still water is u km/h and the speed of the ...

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  15. The speed of a boat downstream is 9 km/h and the speed upstream is 5 k...

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  16. The speed of a boat downstream is 9 km/h and the speed upstream is 5 k...

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  17. A person covers a distance of 300 km in 6 h by travelling at a constan...

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  18. How long does a train 300 m long travelling at a speed of 54km/h take ...

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  19. What time does a train 200 m long take to cross a bridge 800 m long i...

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  20. An employee, travelling at 20 km/h reaches his office half - an - hou...

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