Mensa Mensa IQ Spatial and Abstract Reasoning 4

Question 1

Which letter continues the series: A, C, F, J, O, ...?

Accepted Answer

U

Answer

The gaps grow by one each step (+2,+3,+4,+5,+6), so O+6 letters is U.

Question 2

A square sheet is rotated 45 degrees. What new overall shape does its silhouette most resemble?

Accepted Answer

A diamond (rhombus orientation)

Answer

A square tilted 45 degrees presents as a diamond standing on one corner.

Question 3

How many triangles are in a single large triangle divided by lines into four equal smaller triangles?

Accepted Answer

5

Answer

There are four small triangles plus the one large outer triangle, totaling five.

Question 4

Which 3D solid has exactly one curved surface and one flat circular face... actually two: which has one flat face and one curved surface?

Accepted Answer

Cone

Answer

A cone has a single circular flat base and one continuous curved surface.

Question 5

In the matrix where each row adds a dot, row 1 has 1 dot and row 2 has 3 dots, how many dots are in row 3?

Accepted Answer

5

Answer

Dots increase by two per row (1, 3, 5), so row 3 has five.

Mensa Practice Test