Number Series - Intermediate-Advanced Level: cube series INTERMEDIATE-ADVANCED

Strategic expert challenge ★ for number series: 20 intermediate-advanced-level problems. Worksheet 19 of 30 - Focus: cube series. Develop expertise in cube series, fibonacci patterns, prime series with step-by-step solutions. Ideal for advanced developing learners targeting advanced concepts with increasing complexity.

📝 Worksheet 19 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate-advanced level

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Worksheet 19 of 30 (63% complete)

Question 1

Find the next term in the series: 1, 7, 8, 15, 23, 38, ?
Each term is the sum of the previous two terms. Next term = 38 + 23 = 61

Question 2

Find the next term in the series: 3, 7.5, 18.75, 46.88, 117.19, ?
This is a geometric series with common ratio 2.5. Next term = 117.19 × 2.5 = 292.98

Question 3

Find the next term in the series: 5, 12, 26, 54, ?
Each term follows: (previous term × 2) + 2. Next term = (54 × 2) + 2 = 110

Question 4

Find the next term in the series: 7, 26, 63, 124, 215, ?
This is a series of consecutive perfect cubes minus 1: (2³-1), (3³-1)... Next term = 7³ - 1 = 342

Question 5

Find the next term in the series: 3, 9, 27, 81, ?
This is an exponential series with base 3: 3^1, 3^2, 3^3... Next term = 3^5 = 243

Question 6

Find the next term in the series: 6, 24, 96, 384, ?
This is a geometric series with common ratio 4. Next term = 384 × 4 = 1536

Question 7

Find the next term in the series: 6, 24, 120, 720, 5040, ?
This is a factorial series: 3!, 4!, 5!... Next term = 8! = 40320

Question 8

Find the next term in the series: 6, 25, 8, 28, 10, 31, 12, 34, ?
Two alternating arithmetic series: First: +2, Second: +3. Next follows second pattern: 12 + 3 = 15

Question 9

Find the next term in the series: 6, 12, 8, 36, 10, 108, 12, 324, ?
Alternating series: First: +2, Second: ×3. Next follows second pattern: 12 × 3 = 36

Question 10

Find the next term in the series: 7, 18, 40, 84, 172, 348, ?
Each term follows: (previous term × 2) + 4. Next term = (348 × 2) + 4 = 700

Question 11

Find the next term in the series: 13, 17, 22, 28, 35, 43, ?
The differences between terms increase by 1 each time. Last difference was 8, next difference is 9, so next term = 43 + 9 = 52

Question 12

Find the next term in the series: 6, 24, 120, 720, ?
This is a factorial series: 3!, 4!, 5!... Next term = 7! = 5040

Question 13

Find the next term in the series: 7, 9, 14, 22, 33, ?
The differences between terms increase by 3 each time. Last difference was 11, next difference is 14, so next term = 33 + 14 = 47

Question 14

Find the next term in the series: 6, 12, 24, 48, 96, ?
This is a geometric series with common ratio 2. Next term = 96 × 2 = 192

Question 15

Find the next term in the series: 15, 23, 19, 27, 23, 31, 27, ?
Alternating series: add 8, subtract 4. Next operation gives 35

Question 16

Find the next term in the series: 2/3, 3/4, 4/5, 5/6, 6/7, 7/8, ?
Both numerator and denominator increase by 1 each time. Next term = 8/9

Question 17

Find the next term in the series: 0, 7, 26, 63, ?
This is a series of consecutive perfect cubes minus 1: (1³-1), (2³-1)... Next term = 5³ - 1 = 124

Question 18

Find the next term in the series: 1/4, 1/5, 1/6, 1/7, ?
The denominator increases by 1 each time while numerator remains 1. Next term = 1/8

Question 19

Find the next term in the series: 10, 18, 26, 34, 42, 50, ?
This is an arithmetic series with common difference 8. Next term = 50 + 8 = 58

Question 20

Find the next term in the series: 27, 81, 243, 729, ?
This is an exponential series with base 3: 3^3, 3^4, 3^5... Next term = 3^7 = 2187
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