Question : Directions: On a certain day John decided to go to school using his newly purchased skates. So, he left his house and skated 15 km northwards, then turned left and skated 7 km, then he took another left turn and skated 15 km, and then finally turned right and skated 13 km. How far exactly is his school from his house?
Option 1: 20 km
Option 2: 6 km
Option 3: 2 km
Option 4: 28 km
Correct Answer: 20 km
Solution : Firstly, we will draw the diagram as per the given instructions –
Here, A is the starting point (John's house) and E is the endpoint (John's school). So, the distance between the starting point and the endpoint is AE. AE = AD + DE = 7 + 13 = 20 km
So, John's school is 20 km from his house. Hence, the first option is correct.
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