Problem

6. A Porche is driven 1.6 times as fast as a BMW. If the difference between their speeds is 45 km/h, how fast is the Porche driven?

Answer

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Answer

The Porche is driven at 120 km/h

Steps

Step 1 ：Let the speed of the BMW be denoted as x km/h. Then the speed of the Porche is 1.6x km/h.

Step 2 ：The difference between their speeds is given as 45 km/h. So, we can write the equation: 1.6x−x=45

Step 3 ：Simplify the equation: 0.6x=45

Step 4 ：Solve for x: x=450.6=75

Step 5 ：Calculate the speed of the Porche: 1.6×75=120

Step 6 ：The Porche is driven at 120 km/h

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