The Answer is:

75 kmph

Full Explanation is here:

Firstly you need to convert those 7200 Seconds into minutes.

You can do this by dividing 7200 by 60.

By doing this 7200/60 we get:

120 Minutes.

Now just convert 120 Minutes into hours by dividing 120 by 2.

We Get:

2 Hours.

Finally divide the total distance(150km) by the time it took to cover that distance to find the kmph(kilometers per hour)

Now we will divide 150 by 2. Here’s what we get:

150/2 = 75

So, the final answer is 75.

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