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**Hint:**In this particular question use the concept that kilo refers to thousand i.e. 1000, and use the concept that in 1 meter there are 100 cm, so use these concepts to reach the solution of the question.

__Complete step-by-step answer__:Now, we have to find out how many meters are there in a kilometer.

As we all know that kilo refers to thousand i.e. 1000.

So 1 kilometer there is 1000 meter.

I.e. 1 kilometer = 1000 meters.

Hence there are 1000 meters in 1 kilometers.

Now we have to find out how many centimeters are there in 1.5 meters.

As we all know that in 1 meter there are 100 centimeter.

I.e. 1 meter = 100 centimeters

Now multiply both sides by 1.5 in the above equation we have,

Therefore, 1.5 (1) meter = 1.5 (100) centimeters.

Now simplify we have,

Therefore, 1.5 meters = 150 centimeters.

Hence there are 150 centimeters in 1.5 meter.

**Hence option (a) is the correct answer.**

**Note**:Whenever we face such types of questions the key concept we have to remember is that we always recall that in a kilometer there are 1000 meters and in a meter there are 100 centimeter so in 1.5 meter there are 150 centimeters.

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