A person travels 7 km eastwards and then turns right and travels 3 km
A person travels 7 km eastwards and then turns right and travels 3 km and further turns right and travels 13 km. What is the shortest distance of the present position of the person from his starting point?
(a) 6 km
(b) 3 sqrt.5 km
(c) 7 km
(d) 4 sqrt.5 km
Answer: (b) 3 sqrt.5 km
According to the question look at the below figure
Then, the shortest distance between starting point to end point = (6^2 + 3^2)^1/2
= (36 + 9)^1/2
= 3 sqrt.5 km
Hence, the correct answer is option (b) 3 sqrt.5 km.