Question

a train is moving at a uniform speed of 84km/hour.how far will it travel in 20 minutes

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Answer 1

Answer:

Distance =speed*time

therefore distance travelled =84*20/60=28km

Answer 2

$\\ \qquad\underline{ \dagger\underline{\textbf{Given} \dagger}} \begin{cases} & \textsf{Speed of train = 84km/hr} \\ & \textsf{Time taken = 20mins} \end{cases}$

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$\\ \qquad\underline{ \dagger\underline{\textbf{Find}} \dagger} \begin{cases} & \textsf{Distance covered by train} \end{cases}$

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$\\ \qquad \underline{ \dagger\underline{\textbf{Solution}} \dagger}$

◕ F1st convert 20mins from mins to hour

we, know that 1min = 1/60hr

→ 20mins = 20/60

→ 20mins = 2/6

→ 20mins = 1/3 hr

Now, using

➨ Distance = Speed × Time

where,

• Speed = 84km/hr
• Time = 1/3hr

♝ Substituting these values ♝

↦ Distance = Speed × Time

↦ Distance = 84 × 1/3

↦ Distance = 84/3

↦ Distance = 28km

Hence, Distance convered by train is 28km