Number Series — Practice MCQs for CCAT

Correct Answer: B — 42

Differences: 4, 6, 8, 10, 12. Next = 30 + 12 = 42.

Correct Answer: C — 36

Pattern: 1², 2², 3², 4², 5², 6². Next = 36.

Correct Answer: B — 38

Differences: 3, 5, 7, 9, 11. Next = 27 + 11 = 38.

Correct Answer: B — 17

These are prime numbers. Next prime after 13 is 17.

Correct Answer: C — 13

Fibonacci series: each number is sum of previous two. 5+8 = 13.

Correct Answer: B — 162

Each term is multiplied by 3. 54 × 3 = 162.

Correct Answer: B — 25

Differences: -5, -10, -15, -20, -25. Next = 50 - 25 = 25.

Correct Answer: B — 216

Pattern: 1³, 2³, 3³, 4³, 5³, 6³. Next = 216.

Correct Answer: C — 20.25

Each term multiplied by 1.5: 4×1.5=6, 6×1.5=9, 9×1.5=13.5, 13.5×1.5=20.25.

Correct Answer: B — 37

Differences: 3, 5, 7, 9, 11. Next = 26 + 11 = 37.

Correct Answer: B — 112

Each term is doubled. 56 × 2 = 112.

Correct Answer: C — 3125

Pattern: 1^1, 2^2, 3^3, 4^4, 5^5. Next = 3125.

Correct Answer: B — 95

Pattern: ×2+1. 5×2+1=11, 11×2+1=23, 23×2+1=47, 47×2+1=95.

Correct Answer: D — 64

Pattern: n²+1 (2,5,10,17,26,37,50). 64 should be 65 (8²+1), so 64 is odd one out.

Correct Answer: B — 127

Pattern: 2^n - 1. 2²-1=3, 2³-1=7, 2⁴-1=15, 2⁵-1=31, 2⁶-1=63, 2⁷-1=127.

Correct Answer: C — 28

Triangular numbers: differences are 2,3,4,5,6,7. Next = 21+7 = 28.

Correct Answer: B — 17

Prime number series. Next prime after 13 is 17.

Correct Answer: C — 720

Factorial series: 1!, 2!, 3!, 4!, 5!, 6!. 6! = 720.

Correct Answer: B — 169

Squares of primes: 2², 3², 5², 7², 11², 13². Next = 169.

Correct Answer: D — 65

Powers of 2: 1,2,4,8,16,32,64. 65 should be 64.