Question

A train covers a distance of 72 km in 45 min how long will it take to run 800 km?
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Answer 1

Step-by-step explanation:

If 72 km in 45 min

72/45 = 800/x

x=800*45/75

x = 500 min

x=500/60

x = 8.33..... hours

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Answer 2

Answer:

A train covers a distance of 72 km in 45min.  8 hr 20 min to take to run 800km​.

Step-by-step explanation:

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

If   distance = 72 km   then time = 45 min

Then  distance = 800 km then    time = ?

If time is x min

[tex]45 \times 800 = 72 \times x\\ x =\frac{800 \times 45}72} \\ x =\frac{36000}{72} \\ x = 500 min\\ x = 8 hr. 20 min[/tex]

So,  8 hr 20 min to take to run 800km​.