Cognitive Flashcards

A train travels 120 miles in 2 hours, then 90 miles in 1.5 hours. What is its average speed for the entire trip?

Answer: 60 mph

Total distance is 210 miles, total time is 3.5 hours: 210 ÷ 3.5 = 60 mph.

Which word does NOT belong with the others: Maple, Oak, Pine, Rose, Birch?

Answer: Rose

Rose is a flowering shrub, while all others are trees.

If all Blips are Blops, and some Blops are Blaps, which must be true?

Answer: Some Blips may be Blaps

Since all Blips are Blops and some Blops are Blaps, it is possible but not certain that some Blips are also Blaps.

What number comes next in the sequence: 3, 6, 12, 24, 48, ___?

Answer: 96

Each term doubles the previous one, so 48 × 2 = 96.

A store marks up items by 40% and then offers a 20% discount. What is the net effect on the original price?

Answer: 12% increase

1.40 × 0.80 = 1.12, meaning the final price is 12% above the original.

Which figure completes the pattern: Triangle, Circle, Square, Triangle, Circle, ___?

Answer: Square

The sequence repeats in sets of three — triangle, circle, square — so the next is square.

A project takes 8 workers 15 days to complete. If 3 workers leave when the project is halfway done, how many additional days will it take to finish?

Answer: 12 days

Half the work remains: 8×15÷2 = 60 worker-days left; 60 ÷ 5 remaining workers = 12 days.

Which conclusion follows logically? Premise 1: No reptiles are warm-blooded. Premise 2: All snakes are reptiles.

Answer: No snakes are warm-blooded

Since all snakes are reptiles and no reptiles are warm-blooded, no snakes are warm-blooded.

How many unique three-digit numbers can be formed using digits 1, 2, and 3 with no repetition?

Answer: 6

3 choices for the first digit × 2 for the second × 1 for the third = 3! = 6.

Which word is most opposite in meaning to 'AMBIGUOUS'?

Answer: Explicit

Ambiguous means unclear or having multiple meanings; explicit means clearly and directly stated.

A sequence follows the rule: multiply by 3 then subtract 2. If the first term is 2, what is the fourth term?

Answer: 28

Term 1=2; Term 2=(2×3)−2=4; Term 3=(4×3)−2=10; Term 4=(10×3)−2=28.

Maria is twice as old as Tom. In 5 years, Maria will be 1.5 times Tom's age. How old is Tom now?

Answer: 5 years old

Let Tom = t; then 2t + 5 = 1.5(t + 5) → 0.5t = 2.5 → t = 5.

Which shape has the most lines of symmetry: equilateral triangle, square, regular pentagon, or regular hexagon?

Answer: Regular hexagon

A regular hexagon has 6 lines of symmetry, more than a pentagon (5), square (4), or triangle (3).

Reading left to right, what is the next letter in the series: A, C, F, J, O, ___?

Answer: U

Gaps between letters are +2, +3, +4, +5, +6; O is the 15th letter, so the next is the 21st = U.

A container holds 3/4 of a liter of juice. If you pour out 1/3 of what is in the container, how much remains?

Answer: 1/2 liter

You pour out 1/3 of 3/4 = 1/4 liter; 3/4 − 1/4 = 1/2 liter remains.

Which of the following is an example of deductive reasoning?

Answer: All mammals breathe air; whales are mammals; therefore whales breathe air.

Deductive reasoning draws a guaranteed conclusion from general premises — the classic syllogism.

A ball is dropped from 64 feet and bounces back to half its height each time. How high does it reach after the 3rd bounce?

Answer: 8 feet

After bounce 1: 32 ft; bounce 2: 16 ft; bounce 3: 8 ft.

Which of these words is a synonym for 'TENACIOUS'?

Answer: Persistent

Tenacious means holding firmly to a goal, which is the same as being persistent.

In a coded language, CAT = 3120 and DOG = 4157. What does BAT equal?

Answer: 2120

Each letter maps to its alphabetical position: B=2, A=1, T=20 → 2120.

Alex can complete a task in 4 hours and Jamie in 6 hours. How long will it take them working together?

Answer: 2.4 hours

Combined rate = 1/4 + 1/6 = 5/12 per hour; time = 12/5 = 2.4 hours.