To get a closer finish in a 100 m race , the runners are given different starting positions depending upon how fast they can run . A starting position of +10 means that the runner starts 10 m in front of the start line and -5 means that the runner starts 5 m behind the start line . `{:("Abbas",0,"Mike",-3,"Vicor",-20),("Peter",+10,"Tarush",+15,"Saher",+5):}`
How far does Tarush have to run to reach the finish line ?

Answer

To determine how far Tarush has to run to reach the finish line in a 100 m race, we can follow these steps:

### Step 1: Understand Tarush's Starting Position
Tarush's starting position is given as +15 meters. This means he starts 15 meters in front of the starting line.

### Step 2: Identify the Total Distance of the Race
The total distance of the race is 100 meters.

### Step 3: Calculate the Distance Tarush Has to Run
To find out how far Tarush has to run to reach the finish line, we need to subtract his starting position from the total distance of the race.

The formula to calculate the distance Tarush has to run is:
\[ \text{Distance to run} = \text{Total distance} - \text{Starting position} \]

Substituting the values:
\[ \text{Distance to run} = 100 \, \text{meters} - 15 \, \text{meters} \]

### Step 4: Perform the Calculation
Now, we perform the subtraction:
\[ \text{Distance to run} = 100 - 15 = 85 \, \text{meters} \]

### Conclusion
Therefore, Tarush has to run **85 meters** to reach the finish line.

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