Q: 5 (CAPF/2012)

Facing the east R walks straight 4 km, turns left and walks 3 km and again turns left and walks 4 km. How far is R now from the starting point?
question_subject: 
Maths
question_year: 
2012
question_exam: 
CAPF
stats: 
0,624,128,40,624,64,24