Question : Directions: Prabhu travelled from his house a distance of 20 km to his friend's house. After some time, he left his friend's house took a turn towards the right and travelled 15 km to reach a park. After resting for a while, he again started to turn to the right and travelled 18 km to reach a petrol pump. From there he again turned right and covered a distance of 15 km. How many km more does he have to travel to reach home?
Option 1: 2 km
Option 2: 18 km
Option 3: 21 km
Option 4: 23 km
Correct Answer: 2 km
Solution :
Firstly, we will draw the diagram as per the given instructions –
Let Prabhu travel from his house in the north direction. Now, draw the diagram as per the given instructions –
In the above figure, O is the starting point and D is the finishing point. So, OD is the distance from the starting point.
OD = OA – AD (AD = BC = 18 km)
OD = 20 – 18
OD = 2 km
So, the distance from the starting point is 2 km. Hence, the first option is correct.
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