Question

a car travels 90 km in 3 hrs. how much time is required to cover 30 km

Answer 1

90km = 3 hour

1km = 3/90 = 1/30 = 2 min

30km = 2 × 30 = 60 min = 1 hour

Therefore, it will travel 30km in 1 hour

Hope this helps you :)

Answer 2

Thanks for your question!! ✌

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Firstly,

The observation says it's direct proportion.

Let the time required be x.

Now,

90 × x = 3 × 30

=) x = ( 3 × 30 ) ÷ 90

=) x = 1

Hence,

Time required to cover the distance of 30 km is 1 hour.

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THANKS

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