1. Insert the missing number. 12, 25, 49, 99, 197, 395, (...) | |
A. 789 | B. 1579 |
C. 722 | D. 812 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
Each number is twice the previous one with 1 added or subtracted alternatively.
2.Insert the missing number. 34, 7, 37, 14, 40, 28, 43, (...) | |
A. 31 | B. 42 |
C. 46 | D. 56 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
We have two series here
34, 37, 40, 43, ... (Increase by 3)
7, 14, 28, ... (Multiply by 2)
Hence, next term is 28 × 2 = 56
3. Find the missing number. 1, 4, 9, 16, 25, 36, 49, (....) | |
A. 64 | B. 54 |
C. 56 | D. 81 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
The series is 12, 22, 32, 42, 52, 62, 72, ...
Hence, next term = 82 = 64
4. Insert the missing number. 2, 7, 10, 22, 18, 37, 26 | |
A. 42 | B. 52 |
C. 46 | D. 62 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
There are two series here
2, 10, 18, 26, ... (Increase by 8)
7, 22, 37, ... (Increase by 15)
Hence, next term is 37+15 = 52
5. 4, 12, 48, 240, 1440, (...) | |
A. 7620 | B. 10080 |
C. 6200 | D. 10020 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
Go on multiplying the given numbers by 3, 4, 5, 6, 7
6. 2, 3, 6, 0, 10, -3, 14, (...) | |
A. 6 | B. 2 |
C. -2 | D. -6 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
There are two series
2, 6, 10, 14, ... (Adding 4)
3, 0, -3, ... (Subtracting 3)
Hence, next term is -3 - 3 = -6
7. 5, 10, 13, 26, 29, 58, 61, (....) | |
A. 128 | B. 64 |
C. 125 | D. 122 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
Numbers are alternatively multiplied by 2 and increased by 3
5 × 2 = 10
10 + 3 = 13
13 × 2 = 26
26 + 3 = 29
29 × 2 = 58
58 + 3 = 61
61 × 2 = 122
8. 1, 8, 27, 64, 125, 216, (....) | |
A. 354 | B. 392 |
C. 343 | D. 245 |
| Discuss |
Here is the answer and explanation
Answer : Option C
Explanation :
The pattern is 13, 23, 33, 43, 53, 63, etc
Hence, next number is 73 = 343
9. 4, 5, 7, 11, 19, (...) | |
A. 22 | B. 35 |
C. 27 | D. 32 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
4
4 × 2 - 3 = 5
5 × 2 - 3 = 7
7 × 2 - 3 = 11
11 × 2 - 3 = 19
19 × 2 - 3 = 35
10. 23, 29, 31, 37, 41, 43, (...) | |
A. 53 | B. 47 |
C. 48 | D. 59 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
All are prime numbers in their order, starting from 23
Hence, next number is 47
11. 8, 24, 12, 36, 18, 54, (....) | |
A. 27 | B. 68 |
C. 108 | D. 72 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
8 × 3 = 24
24 ÷ 2 = 12
12 × 3 = 36
36 ÷ 2 = 18
18 × 3 = 54
54 ÷ 2 = 27
12. 7, 26, 63, 124, 215, 342, (....) | |
A. 481 | B. 391 |
C. 511 | D. 421 |
| Discuss |
Here is the answer and explanation
Answer : Option C
Explanation :
The series is (23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1), ...
Hence, next number is (83 - 1) = 511
13. 2, -6, 18, -54, 162, (...) | |
A. 486 | B. -486 |
C. 422 | D. -428 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
2 × -3 = -6
-6 × -3 = 18
18 × -3 = -54
-54 × -3 = 162
162 × -3 = -486
14. 2, 6, 12, 20, 30, 42, 56, (...) | |
A. 61 | B. 72 |
C. 64 | D. 70 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
The pattern is 1×2, 2×3, 3×4, 4×5, 5×6, 6×7, 7×8.
Hence, next number is 8×9 = 72
15. 8, 12, 18, 27, 40.5, (...) | |
A. 60.75 | B. 62 |
C. 58 | D. 60.5 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
8
(8×3)÷ 2 = 12
(12×3)÷ 2 = 18
(18×3)÷ 2 = 27
(27×3)÷ 2 = 40.5
(40.5×3)÷ 2 = 60.75
16. 196, 144, 100, 64, 36, ? | |
A. 16 | B. 8 |
C. 18 | D. 12 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
The patter is 142, 122, 102, 82, 62, ...
So next number is 42 = 16
17. 2, 3, 5, 16, 231, ? | |
A. 62005 | B. 52120 |
C. 422 | D. 53105 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
2
3
32 - 22 = 5
52 - 32 = 16
162 - 52 = 231
2312 - 162 = 53105
18. 279936, 46656, 7776, 1296, 216, ? | |
A. 60 | B. 46 |
C. 36 | D. 66 |
| Discuss |
Here is the answer and explanation
Answer : Option C
Explanation :
Go on dividing by 6 to the next number
19. 220, 218, 214, 208, 200, 190, ? | |
A. 166 | B. 178 |
C. 182 | D. 190 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
220
220 - 2 = 218
218 - 4 = 214
214 - 6 = 208
208 - 8 = 200
200 - 10 = 190
190 - 12 = 178
20. 12, 38, 116, 350, 1052, ? | |
A. 1800 | B. 2200 |
C. 2800 | D. 3158 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
12
12 × 3 + 2 = 38
38 × 3 + 2 = 116
116 × 3 + 2 = 350
350 × 3 + 2 = 1052
1052 × 3 + 2 = 3158
21. 9, 35, 91, 189, 341, ? | |
A. 502 | B. 521 |
C. 559 | D. 611 |
| Discuss |
Here is the answer and explanation
Answer : Option C
Explanation :
13 + 23 = 9
23 + 33 = 35
33 + 43 = 91
43 + 53 = 189
53 + 63 = 341
63 + 73 = 559
22. 78, 64, 48, 30, 10, (...) | |
A. -12 | B. -14 |
C. 2 | D. 8 |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
78 - 14 = 64
64 - 16 = 48
48 - 18 = 30
30 - 20 = 10
10 - 22 = -12
23. 16384, 8192, 2048, 256, 16, ? | |
A. 1 | B. 8 |
C. 2 | D. 0.5 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
Terms are continuously divided by 2,4,8,16, and so on
16384
16384 ÷ 2 = 8192
8192 ÷ 4 = 2048
2048 ÷ 8 = 256
256 ÷ 16 = 16
16 ÷ 32 = 0.5
24. 46080, 3840, 384, 48, 8, 2, ? | |
A. 1 | B. 1⁄64 |
C. 1⁄8 | D. None of these |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
46080 ÷ 12 = 3840
3840 ÷ 10 = 384
384 ÷ 8 = 48
48 ÷ 6 = 8
8 ÷ 4 = 2
2 ÷ 2 = 1
25. 7, 21, 63, 189, 567, ? | |
A. 1521 | B. 1609 |
C. 1307 | D. 1701 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
Multiply a term with 3 to get the next term
26. 1, 0.5, 0.25, 0.125, 0.0625, ? | |
A. 0.015625 | B. 0.03125 |
C. 0.0078125 | D. None of these |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
Divide by 2 to get the next term
27. Complete the series 20, 19, 17, ...., 10, 5 | |
A. 15 | B. 16 |
C. 13 | D. 14 |
| Discuss |
Here is the answer and explanation
Answer : Option D
Explanation :
20 - 1 = 19
19 - 2 = 17
17 - 3 = 14
14 - 4 = 10
10 - 5 = 5
28. Which fraction will come next, $MF#%\dfrac{1}{2}, \dfrac{3}{4}, \dfrac{5}{8}, \dfrac{7}{16}, \text{?}$MF#% | |
A. $MF#%\dfrac{9}{32}$MF#% | B. $MF#%\dfrac{9}{30}$MF#% |
C. $MF#%\dfrac{9}{28}$MF#% | D. $MF#%\dfrac{11}{32}$MF#% |
| Discuss |
Here is the answer and explanation
Answer : Option A
Explanation :
Numerators are getting increased by 2. i.e., numerators goes like 1,3,5,7,...
Hence, next numerator = 7+2 = 9
Denominators are getting multiplied by 2. i.e., denominators goes like 2,4,8,16,...
Hence, next denominator = 16×2 = 32
$MF#%\text{So, the next fraction is }\dfrac{9}{32}$MF#%
29. 4, 10, (?), 82, 244, 730 | |
A. 26 | B. 28 |
C. 40 | D. 48 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
4 × 3 - 2 = 10
10 × 3 - 2 = 28
28 × 3 - 2 = 82
82 × 3 - 2 = 244
244 × 3 - 2 = 730
30. Complete the series 95, 115.5, 138, ..., 189 | |
A. 160.5 | B. 162.5 |
C. 164.5 | D. 166.5 |
| Discuss |
Here is the answer and explanation
Answer : Option B
Explanation :
95 + 20.5 = 115.5
115.5 + 22.5 = 138
138 + 24.5 = 162.5
162.5 + 26.5 = 189
5 12 19 26 (increased by 7 alternate terms)
27+22(9+13=22) = 49
49+35(22+13) =84
84+48(35+13) = 132
132+61 (48+13) =193
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