A' started from his house and walked 20 m towards East, where his friend B joined him. They together walked 10 m in the same direction. Then 'A' turned left while 'B' turned right and travelled 2 m and 8 m respectively. Again 'B' turned left to travel 4 m followed by 5 m to his right to reach his office. 'A' turned right and travelled 12 m to reach his office. What is the shortest distance between the two offices?
15 m
17 m
19 m
20 m
Answer is (b). Shortest Distance = Hypotenuse = √(〖15〗^2+8^2 )=√(225+64)=√289=17.
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