P, Q, R, S, T and U are six houses. P is 3 km north of Q while S is 3 km east of Q. R is 3 km west of P. T is 6 km south of R. U is 3 km east of T.
What is the distance between Q and U?1
3 km
2
4 km
3
2 km
4
1 km
P, Q, R, S, T and U are six houses. P is 3 km north of Q while S is 3 km east of Q. R is 3 km west of P. T is 6 km south of R. U is 3 km east of T.
What is the distance between Q and U?