Question

A personal travelled 30 km in the north ward direction, then travelled 7 km in eastward direction and finally travelled 6km in the southward direction. How far is he from the starting point ?

• A. 17 km
• B. 37km
• C. 31km
• D. 25km

Answer 1

Answer:

D. 25km

From the above information,

we get

Distance between starting and end point is,

$=\sqrt{(30-6)^2+7^2}$

$=\sqrt{24^2+7^2}$

$=\sqrt{576+49}$

$=\sqrt{625}$

$=25 km$