Number Series Questions and Answers
Practice ModeShowing 10 of 25 questions
Q11
What is the next number: 3, 6, 18, 72, 360, ?
Answer: Option C
Explanation: Pattern: ×2, ×3, ×4, ×5, ×6. So 360×6=2160
Q12
Find the missing number: 121, 144, 169, 196, 225, ?
Answer: Option A
Explanation: Pattern: Squares of 11, 12, 13, 14, 15, 16. So 16²=256
Q13
What comes next: 100, 95, 85, 70, 50, ?
Answer: Option B
Explanation: Pattern: -5, -10, -15, -20, -25. So 50-25=25
Q14
Find the next number: 1, 8, 27, 64, 125, ?
Answer: Option C
Explanation: Pattern: Cubes of natural numbers: 1³, 2³, 3³, 4³, 5³, 6³=216
Q15
What is the next number: 2, 6, 18, 54, 162, ?
Answer: Option B
Explanation: Pattern: ×3 each time. So 162×3=486
Q16
Find the missing number: 0, 4, 18, 48, 100, ?
Answer: Option B
Explanation: Pattern: n³-n² (1³-1²=0, 2³-2²=4, 3³-3²=18, etc.). So 6³-6²=216-36=180
Q17
What comes next: 5, 16, 49, 148, ?
Answer: Option B
Explanation: Pattern: ×3+1 each time. So 148×3+1=445
Q18
Find the next number: 12, 36, 108, 324, ?
Answer: Option B
Explanation: Pattern: ×3 each time. So 324×3=972
Q19
What is the next number: 1, 4, 13, 40, 121, ?
Answer: Option B
Explanation: Pattern: ×3+1 each time. So 121×3+1=364
Q20
Find the missing number: 7, 26, 63, 124, 215, ?
Answer: Option A
Explanation: Pattern: n³-1 (2³-1=7, 3³-1=26, 4³-1=63, etc.). So 7³-1=343-1=342