Abstract and Logical Reasoning Flashcards

What comes next in the series: 1, 1, 2, 3, 5, 8, 13, ___?

Answer: 21

This is the Fibonacci sequence where each term is the sum of the two preceding ones: 8 + 13 = 21.

All dogs bark. Rex is a dog. Which conclusion must follow?

Answer: Rex barks

This is a valid syllogism: the universal rule 'all dogs bark' plus the fact 'Rex is a dog' guarantees 'Rex barks.'

A clock shows 3:00. What angle is formed between the hour and minute hands?

Answer: 90°

At 3:00 the minute hand points to 12 and the hour hand to 3, forming a quarter-circle or 90° angle.

Which shape can be folded to form a cube: a cross made of 6 squares, a row of 6 squares, an L-shape of 5 squares, or a T-shape of 4 squares?

Answer: A cross made of 6 squares

A cube has 6 faces, and a net of 6 squares arranged in a cross (plus sign) pattern can be folded to form a cube.

If 'MAN' is written as 'OCQ', how is 'BOY' written?

Answer: DQB

Each letter is shifted forward by 2 positions: B→D, O→Q, Y→B, giving DQB.

Which of the following is the odd one out: 16, 25, 36, 48, 64?

Answer: 48

16, 25, 36, and 64 are all perfect squares (4², 5², 6², 8²), while 48 is not a perfect square.

In a row of students, Ava is 5th from the left and 7th from the right. How many students are in the row?

Answer: 11

Total = position from left + position from right − 1 = 5 + 7 − 1 = 11.