Question

Q.11: At a uniform speed of 75 km per hour, a car covers a certain distance in 40 minutes . How much time will it take to cover the same distance at 30 km per hour?

Answer 1

Answer:

it will take 1 hour 30 mins

Step-by-step explanation:

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Answer 2

We use the formula Speed=

$\frac{time}{speed}$

Let us consider the distance be x km

$Then \: time = </p><p> \frac{60}{20}$

$hr= \frac{1}{3}$

$⇒S= </p><p> \frac{t}{d}$

$⇒75= </p><p> \frac{x}{1/3}$

$⇒x=75 \times \frac{1}{3}$

⇒x=25

∴ the car will cover 25 km.