If a racing car covers 500 km in 4 hours then find its speed-A- 250 km - hB- 100 km - hC- 125 km - hD- 25 km - h

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Standard VII

Mathematics

Introduction to Speed

If a racing c...

Question

If a racing car covers 500 km in 4 hours then find its speed.

125 km/h

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25 km/h

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250 km/h

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100 km/h

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Solution

The correct option is A
125 km/h

Given, distance covered by racing car = 500 km

Time took to cover 500 km = 4 h

$∵$ $S p e e d = \frac{d i s t a n c e}{t i m e}$

$\Rightarrow$ speed of car = $\frac{500}{4}$

= 125 km/h

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Question 6

By travelling at a speed of 48 km/h, a car can finish a certain journey in 10 hours. To cover the same distance in 8 hours, the speed of the car should be
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If a racing car covers 500 km in 4 hours then find its speed.

The correct option is A 125 km/h Given, distance covered by racing car = 500 km Time took to cover 500 km = 4 h ∵ Speed = distancetime ⇒ speed of car = 5004 = 125 km/h

The correct option is A
125 km/h

Given, distance covered by racing car = 500 km

Time took to cover 500 km = 4 h

$∵$ $S p e e d = \frac{d i s t a n c e}{t i m e}$

$\Rightarrow$ speed of car = $\frac{500}{4}$

= 125 km/h