HAST Abstract Reasoning 2

Question 1

Shapes are shaded: all triangles are shaded, some circles are shaded. Which conclusion must be true?

Accepted Answer

At least one circle is shaded

Answer

The statement 'some circles are shaded' directly means at least one circle is shaded, making that the only guaranteed conclusion.

Question 2

A fold-and-cut problem: a square paper is folded in half vertically and a hole is punched in the center. When unfolded, how many holes appear?

Accepted Answer

2

Answer

Folding vertically and punching once creates a mirror-image hole on each half of the paper, resulting in 2 holes when unfolded.

Question 3

Which net can be folded into a cube: (A) a cross of 6 squares, (B) a row of 6 squares, (C) an L-shape of 6 squares, (D) a T-shape of 5 squares?

Accepted Answer

A cross of 6 squares

Answer

A standard cross-shaped net (1 center square with 4 attached to each side and 1 more on one side) correctly folds into a cube.

Question 4

In a sequence of symbols: ★ ☆ ★★ ☆☆ ★★★ ☆☆☆, what is the next symbol group?

Accepted Answer

★★★★

Answer

The pattern alternates filled and open stars, with each group increasing by one; after ☆☆☆ (3 open) comes ★★★★ (4 filled).

Question 5

A figure is reflected across a vertical axis. If a right-pointing triangle is on the left side, where does it appear after reflection?

Accepted Answer

Right side, pointing left

Answer

Reflection across a vertical axis moves the triangle to the opposite side and reverses its horizontal direction.

HAST - Higher Ability Selection Test Practice Test