Question

train travel 16.8 kilometre in 25 minutes find the speed of the train in kilometre per hour the minute per second​

Answer 1

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Given,

Distance covered by the train - 16.8 km.

Time taken - 25 minutes.

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Express the given time taken by the train in Hours.

• 1 Hour = 60 minutes.

$\longrightarrow$ 1 min = $\frac{1}{60}$

• Multiply with 25 on both sides.

$\longrightarrow$ 25 min = $\frac{25}{60}$

$\longrightarrow$ 25 min = $\frac{5}{12}$

• Time taken by train in Hrs = $\frac{5}{12}$

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•Find the speed of the train in kmph.

• Speed of the train.

$\frac{Distance\:covered}{time\:taken}$

Substituting values -

$\longrightarrow$Speed of train = $\frac{16.8}{\frac{5}{12}$

$\longrightarrow$Speed of train = $\frac{16.8×12}{5}$

$\longrightarrow$Speed of train = $\frac{168×12}{50}$

$\longrightarrow$Speed of train = $\frac{2016}{50}$

$\longrightarrow$Speed of train = 40.32 kmph

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Find the speed of train in mps.

• 1 kmph = $\frac{5}{18}$

$\longrightarrow$ Speed of train = 40.32 × $\frac{5}{18}$ mph

$\longrightarrow$Speed of train = 11.2 mph

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$\large{\sf{\pink{Speed\:of\:train=40.32\:kmph}}}$

$\large{\sf{\pink{Speed\:of\:train=11.2\:kmph}}}$