COOP Test of Sequences 2 — Questions and Answers
Question 1: What comes next in the sequence? 3, 6, 12, 24, ___
- 36
- 42
- 48 (Correct answer)
- 30
Correct answer: 48
Each term is doubled: 3×2=6, 6×2=12, 12×2=24, 24×2=48.
Question 2: Which letter comes next? A, C, E, G, ___
- H
- I (Correct answer)
- J
- K
Correct answer: I
The sequence skips every other letter: A, C, E, G, I.
Question 3: What number is missing? 100, 81, 64, ___, 36
- 49 (Correct answer)
- 52
- 45
- 56
Correct answer: 49
These are perfect squares in descending order: 10², 9², 8², 7², 6².
Question 4: Complete the sequence: 1, 4, 9, 16, 25, ___
- 30
- 35
- 36 (Correct answer)
- 49
Correct answer: 36
These are perfect squares: 1², 2², 3², 4², 5², 6²=36.
Question 5: What comes next? Z, X, V, T, ___
- S
- R (Correct answer)
- Q
- P
Correct answer: R
The sequence moves backward skipping one letter each time: Z, X, V, T, R.
Question 6: Find the next number: 5, 10, 20, 40, ___
- 60
- 70
- 75
- 80 (Correct answer)
Correct answer: 80
Each term is multiplied by 2: 5×2=10, 10×2=20, 20×2=40, 40×2=80.
Question 7: What is the missing number? 2, 5, 10, 17, ___, 37
- 24
- 26 (Correct answer)
- 28
- 30
Correct answer: 26
The differences increase by 2: +3, +5, +7, +9, +11; so 17+9=26.
COOP Test of Sequences 2
What comes next in the sequence? 3, 6, 12, 24, ___