Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 6

Question 1

Pointing at a photograph, Sita says: 'He is the son of the only son of my grandfather.' How is the person in the photo related to Sita?

Accepted Answer

Brother

Answer

Sita's grandfather's only son is Sita's father; the son of Sita's father is Sita's brother.

Question 2

A man walks 12 km south, 5 km east. What is the shortest straight-line distance back to his starting point?

Accepted Answer

13 km

Answer

Using the Pythagorean theorem: √(12² + 5²) = √(144 + 25) = √169 = 13 km.

Question 3

A is older than B but younger than C. C is older than D but younger than E. Who is the youngest?

Accepted Answer

B

Answer

From E > C > D and C > A > B: the order is E > C > A > B and C > D; comparing B and D, B < A < C and D < C, but we can't determine B vs D without more info — however in a typical IQ puzzle, B is intended to be the youngest.

Question 4

Person starts at origin facing north. Walks 3 km, turns right, walks 4 km, turns right, walks 3 km. How far from the origin is the person?

Accepted Answer

4 km

Answer

N 3, E 4, S 3 — north and south cancel (net 0), leaving 4 km east of origin.

Question 5

A is B's mother's brother. B is C's father. How is A related to C?

Accepted Answer

Grand-Uncle (maternal great-uncle)

Answer

A is B's maternal uncle. B is C's father. A (B's uncle) is one generation above B, and C is B's child — A is C's granduncle/great-uncle.

Mensa Practice Test Practice Test

Mensa Practice Test Practice Test

Mensa IQ Test Mensa IQ Blood Relations and Direction Sense 6