Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 8

Question 1

Rahul is to the south of Priya, Ankit is to the east of Priya, and Vijay is to the north of Ankit. Vijay is to which side of Priya?

Accepted Answer

North-East

Answer

Ankit is east of Priya; Vijay is north of Ankit — so Vijay is both north (of Ankit) and east (of Priya), placing Vijay to the northeast of Priya.

Question 2

A mother tells her son: 'That boy playing outside is the younger of the only two children of my mother's only daughter.' The boy outside is the son's:

Accepted Answer

Brother

Answer

The mother's mother's only daughter is the mother herself (assuming she is her mother's only daughter); that daughter's only two children include the son and the boy outside — they are brothers.

Question 3

A policeman walks 1 km north, 2 km east, 4 km south, 2 km west, and finally 3 km north. How far is the policeman from the starting point?

Accepted Answer

0 km — at the start

Answer

Net north-south: 1+3−4 = 0 km; net east-west: 2−2 = 0 km — the policeman is back at the starting point.

Question 4

If A + B means A is the father of B, A − B means A is the sister of B, and A × B means A is the brother of B, what does P + Q − R × S mean?

Accepted Answer

P is the father of Q, Q is the sister of R, R is the brother of S

Answer

Using the given operations: P+Q = P is the father of Q; Q−R = Q is the sister of R; R×S = R is the brother of S. The expression chains these three relationships.

Question 5

A boy faces east and walks 5 km, turns left and walks 5 km, turns left again and walks 5 km. How far is he from the start, and in what direction must he walk to return directly?

Accepted Answer

5 km north of start — must walk south to return

Answer

East 5, North 5 (left from east), West 5 (left from north) — net position: 0 east-west (5E − 5W = 0), 5 km north. He is 5 km north of start and must walk south to return.

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Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 8