# Ram Walks 4 km North-West and then 3 km South-West, How far from Starting point

Ram walks 4 km north-west and then 3 km south-west. How far is he from his starting point?

• 12 km
• 7 km
• 6 km
• 5 km
Monis Rasool Professor Asked on 5th May 2015 in

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Ram walks in north – west direction = 4 km

and he walks in south – west direction = 3 km

In figure –

Triangle ABC is a right angle triangle

AC2 = AB2 + BC2                                                                             (by Pythagoras theorem)
AC2 = 32 + 42 = 9 + 16
AC2 = 25
AC = 5 km
Hence, the distance between starting point and ending point is 5 km.

Anurag Mishra Professor Answered on 30th May 2015.