# Arithmetic Aptitude :: Time and Distance

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## 8. An athlete runs half of the distance at the speed of 10 km/hr and remaining 15 km at the speed of 20 km/hr, how much time will be taken to cover the total distance?

**Answer:**

**Option B**

**Explanation :**

We know that time = distance/speed

Time taken by the athlete for the first half = 15/10

And time taken by the athlete for the second half = 15/20

Total time = 15/10 + 15/20 = (45/20) x 60 = 135 mins

Time taken to cover the total distance is 135 mins.

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