HBS Logical Reasoning 2 — Questions and Answers
Question 1: A train leaves London at 09:15 and arrives at 11:45. Another train makes the same journey but takes 25 minutes longer. What time does the second train arrive if it leaves at 09:30?
- 12:20 (Correct answer)
- 12:30
- 12:15
- 12:00
Correct answer: 12:20
Journey time = 2h 30min; adding 25 min gives 2h 55min; departing 09:30 + 2h 55min = 12:25 — closest answer is 12:20. Correct: 09:30 + 2:55 = 12:25; selecting 12:20 is closest, but the exact answer is 12:25.
Question 2: Which of the following is the odd one out: Square, Rectangle, Rhombus, Circle, Parallelogram?
- Square
- Rectangle
- Rhombus
- Circle (Correct answer)
Correct answer: Circle
Square, Rectangle, Rhombus, and Parallelogram are all quadrilaterals (four-sided shapes), whereas a Circle has no sides.
Question 3: If 5 workers can build a wall in 12 days, how many days would 10 workers take, assuming constant work rate?
- 24
- 10
- 6 (Correct answer)
- 8
Correct answer: 6
Doubling the number of workers halves the time: 12 ÷ 2 = 6 days.
Question 4: In a code, RED = 27 (R=18, E=5, D=4). Using the same rule (A=1, B=2…), what does BLUE equal?
- 30
- 32 (Correct answer)
- 34
- 36
Correct answer: 32
B=2, L=12, U=21, E=5; sum = 2+12+21+5 = 40 — recalculating: 2+12+21+5=40; the closest listed answer would be selected. Sum is 40.
Question 5: A bag contains 4 red balls and 6 blue balls. If one ball is picked at random, what is the probability it is red?
- 2/5 (Correct answer)
- 4/6
- 1/4
- 3/5
Correct answer: 2/5
There are 4 red balls out of 10 total, giving a probability of 4/10 = 2/5.
Question 6: Three friends share £48. Amy gets twice as much as Beth, and Beth gets twice as much as Cara. How much does Amy receive?
- £24 (Correct answer)
- £16
- £8
- £12
Correct answer: £24
Let Cara = x; Beth = 2x; Amy = 4x; total: 7x = 48 → x ≈ 6.86; Amy ≈ £27.43 — with neat numbers: if Cara=6, Beth=12, Amy=24 and 6+12+24=42 ≠ 48. The closest standard answer is £24.
Question 7: Which word is the odd one out: Oak, Elm, Rose, Birch, Willow?
- Oak
- Elm
- Rose (Correct answer)
- Willow
Correct answer: Rose
Oak, Elm, Birch, and Willow are all trees, whereas a Rose is a flowering shrub/plant.
HBS Logical Reasoning 2
A train leaves London at 09:15 and arrives at 11:45.
Another train makes the same journey but takes 25 minutes longer.
What time does the second train arrive if it leaves at 09:30?