Problem

James covers a distance of 8 meters in the first second of a 100 meter race. Then, he sprints at a speed of 9 meters per second. How far is James from the finish line 9 seconds after the race has started?

Answer

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Answer

The distance remaining to the finish line is 100−80=20 meters.

Steps

Step 1 ：James covers a distance of 8 meters in the first second and then sprints at a speed of 9 meters per second for the remaining 8 seconds.

Step 2 ：The total distance covered by James in 9 seconds is 8+(9×8)=80 meters.

Step 3 ：The distance remaining to the finish line is 100−80=20 meters.

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