1. Find the next number: 2, 6, 12, 20, 30, ?
- 40
- 42
- 44
- 36
Answer: B) 42
Explanation: The differences are 4, 6, 8, 10, so the next difference is 12: 30+12=42. (Also n(n+1).)
MCQs / Quantitative Reasoning / Patterns & IQ
2 multiple-choice questions on Patterns & IQ from Quantitative Reasoning, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.
Answer: B) 42
Explanation: The differences are 4, 6, 8, 10, so the next difference is 12: 30+12=42. (Also n(n+1).)
Answer: B)
Explanation: Each shape has one more side than the one before: 3, 4, 5, so the next has 6 sides — a hexagon.