Question

A train travels a total of 43 km at a constant speed of 120 km/h.
How long is its journey? Give your answer in minutes and seconds, to the nearest second

Answer 1

Step-by-step explanation:

Distance = 43 km

Speed = 120 km/hr

Time =$\frac{distance}{speed}$

Time = $\frac{43}{120}$ hours

1 hour = 60 mins

$\frac{43}{120}$ hours = $\frac{43}{120}$×60

= $\frac{43}{2}$ minutes

= 21.5 mins

1 minute = 60 seconds.

0.5 minute = 0.5× 60

$\: \: \: \: \: \: \: \: \: \: \:$ = 30 seconds

Time = 21 minutes 30 seconds

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