Ravi walks 8 km North-East and then 6km South-East. How far is he from his starting point?
Answer: (4) 10 Km
Ravi walks in the North-East = 8 Km
And walks in the South – East = 6 Km
Now, in the figure-
Distance between starting point and end point = Ö(82 + 62) = Ö (64 + 36)
= Ö100 = 10 Km
Hence, the answer is (4) 10 Km.