A person drives 12 km in east direction and then takes a left turn and drive for 5 km
Answer: (3) 13 km
According to the question look at the below diagram-
Then, the distance of short rout = sqrt.(12^2 + 5^2)
= sqrt.(144 + 25)
= 13 km
Then, the shortest distance from starting point to end point is 13 km.
Hence, the correct answer is option (3) 13 km.