I travel 20 miles towards north and then travel 25 miles eastward. I then travel 40 miles rightwards, then travel 30 miles towards left and then travels 12 miles to the left and finally 20 miles northwards. How far am i pproximately from my original destination and in what direction ?

Correct Answer: 13 miles towards south-west

 Using pythagorus rule, 

 x2=122+52

 --> x = 13