1
Find the next number in the series: 2, 4, 6, 8, 10, ?
Score: 0 / 10Pick an answer —
12 is the next number because Adds 2 each step; 10 + 2 = 12.
English • series
Reasoning Series – Quiz Set 1
Last updated on 2026-02-07
Three 10-question bundles from our Reasoning Series quiz library.
Table of contents
Bundle 1
Reasoning – Set 1
Bundle ID: 9002000001
2
Find the next number in the series: 3, 7.50, 18.75, 46.88, 117.19, ?
Score: 0 / 10Pick an answer —
292.98 is the next number because Geometric with ratio 2.5; 117.19 × 2.5 = 292.98.
3
Find the next number in the series: 5, 10, 14, 28, 32, ?
Score: 0 / 10Pick an answer —
64 is the next number because Alternate double then +4; next step is double (32 × 2) = 64.
4
Find the next number in the series: 4, 5, 9, 14, 23, ?
Score: 0 / 10Pick an answer —
37 is the next number because Each term is sum of previous two; 14 + 23 = 37.
5
Find the next number in the series: 53, 68, 85, 104, 125, ?
Score: 0 / 10Pick an answer —
148 is the next number because Square numbers with +4; next is (12)² + 4 = 148.
6
Find the next number in the series: 6, 8, 11, 15, 20, ?
Score: 0 / 10Pick an answer —
26 is the next number because Gaps grow by 1 starting at 2; last gap 5, next gap 6 so next is 20+6=26.
7
Find the next number in the series: 8, 11, 14, 17, 20, ?
Score: 0 / 10Pick an answer —
23 is the next number because Adds 3 each step; 20 + 3 = 23.
8
Find the next number in the series: 9, 22.50, 56.25, 140.62, 351.56, ?
Score: 0 / 10Pick an answer —
878.90 is the next number because Geometric with ratio 2.5; 351.56 × 2.5 = 878.90.
9
Find the next number in the series: 11, 22, 26, 52, 56, ?
Score: 0 / 10Pick an answer —
112 is the next number because Alternate double then +4; next step is double (56 × 2) = 112.
10
Find the next number in the series: 2, 6, 8, 14, 22, ?
Score: 0 / 10Pick an answer —
36 is the next number because Each term is sum of previous two; 14 + 22 = 36.
Bundle 2
Reasoning – Set 2
Bundle ID: 9002000002
1
Find the next number in the series: 46, 59, 74, 91, 110, ?
Score: 0 / 10Pick an answer —
131 is the next number because Square numbers with +10; next is (11)² + 10 = 131.
2
Find the next number in the series: 3, 6, 10, 15, 21, ?
Score: 0 / 10Pick an answer —
28 is the next number because Gaps grow by 1 starting at 3; last gap 6, next gap 7 so next is 21+7=28.
3
Find the next number in the series: 14, 18, 22, 26, 30, ?
Score: 0 / 10Pick an answer —
34 is the next number because Adds 4 each step; 30 + 4 = 34.
4
Find the next number in the series: 6, 15, 37.50, 93.75, 234.38, ?
Score: 0 / 10Pick an answer —
585.95 is the next number because Geometric with ratio 2.5; 234.38 × 2.5 = 585.95.
5
Find the next number in the series: 6, 12, 16, 32, 36, ?
Score: 0 / 10Pick an answer —
72 is the next number because Alternate double then +4; next step is double (36 × 2) = 72.
6
Find the next number in the series: 4, 2, 6, 8, 14, ?
Score: 0 / 10Pick an answer —
22 is the next number because Each term is sum of previous two; 8 + 14 = 22.
7
Find the next number in the series: 28, 39, 52, 67, 84, ?
Score: 0 / 10Pick an answer —
103 is the next number because Square numbers with +3; next is (10)² + 3 = 103.
8
Find the next number in the series: 9, 13, 18, 24, 31, ?
Score: 0 / 10Pick an answer —
39 is the next number because Gaps grow by 1 starting at 4; last gap 7, next gap 8 so next is 31+8=39.
9
Find the next number in the series: 3, 8, 13, 18, 23, ?
Score: 0 / 10Pick an answer —
28 is the next number because Adds 5 each step; 23 + 5 = 28.
10
Find the next number in the series: 12, 24, 28, 56, 60, ?
Score: 0 / 10Pick an answer —
120 is the next number because Alternate double then +4; next step is double (60 × 2) = 120.
Bundle 3
Reasoning – Set 3
Bundle ID: 9002000003
1
Find the next number in the series: 2, 3, 5, 8, 13, ?
Score: 0 / 10Pick an answer —
21 is the next number because Each term is sum of previous two; 8 + 13 = 21.
2
Find the next number in the series: 25, 34, 45, 58, 73, ?
Score: 0 / 10Pick an answer —
90 is the next number because Square numbers with +9; next is (9)² + 9 = 90.
3
Find the next number in the series: 6, 11, 17, 24, 32, ?
Score: 0 / 10Pick an answer —
41 is the next number because Gaps grow by 1 starting at 5; last gap 8, next gap 9 so next is 32+9=41.
4
Find the next number in the series: 9, 15, 21, 27, 33, ?
Score: 0 / 10Pick an answer —
39 is the next number because Adds 6 each step; 33 + 6 = 39.
5
Find the next number in the series: 7, 14, 18, 36, 40, ?
Score: 0 / 10Pick an answer —
80 is the next number because Alternate double then +4; next step is double (40 × 2) = 80.
6
Find the next number in the series: 4, 4, 8, 12, 20, ?
Score: 0 / 10Pick an answer —
32 is the next number because Each term is sum of previous two; 12 + 20 = 32.
7
Find the next number in the series: 11, 18, 27, 38, 51, ?
Score: 0 / 10Pick an answer —
66 is the next number because Square numbers with +2; next is (8)² + 2 = 66.
8
Find the next number in the series: 3, 9, 16, 24, 33, ?
Score: 0 / 10Pick an answer —
43 is the next number because Gaps grow by 1 starting at 6; last gap 9, next gap 10 so next is 33+10=43.
9
Find the next number in the series: 15, 17, 19, 21, 23, ?
Score: 0 / 10Pick an answer —
25 is the next number because Adds 2 each step; 23 + 2 = 25.
10
Find the next number in the series: 13, 26, 30, 60, 64, ?
Score: 0 / 10Pick an answer —
128 is the next number because Alternate double then +4; next step is double (64 × 2) = 128.
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