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Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
2,15,41,80,?
The pattern is + 13, + 26, + 39,.....
So, missing term = 80 + 52 = 132.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
6, 11, 21, 36, 56, ?
The pattern is + 5, + 10, + 15, + 20, ...
So, missing term = 56 + 25 = 81.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
563, 647, 479, 815, ?
The pattern is + 84,  168, + 336,.....i.e. + 84,  (84 x 2), + (84 x 2^{2}), .....
So, missing term = 815  (84 x 2^{3}) = 815  672 = 143.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
13, 35, 57, 79, 911, ?
The terms of the given series are numbers formed by joining together consecutive
odd numbers in order i.e. 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11, .....
So, missing term = number formed by joining 11 and 13 = 1113.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
1, 4, 10, 22, 46, ?
The pattern is + 3, + 6, + 12, + 24,.....
So, missing term = 46 + 48 = 94.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
66, 36, 18, ?
Each term in the series is the product of the digits of the preceding term.
So, missing term = 1 x 8 = 8
666*6=36
363*6=18
181*8=8.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
In the series 3, 9, 15, ...... what will be the 21st term?
Clearly, 3 + 6 = 9, 9 + 6 = 15,.....
So, the series is an A.P. in which a = 3 and d = 6.
Therefore 21st term = a + (21  1) d = a + 20d = 3 + 20 x 6 = 123.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
28, 33, 31, 36, ?, 39
The pattern is + 5,  2, + 5,  2,.....
So, missing term = 36  2 = 34.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
1, 9, 25, 49, 81, ?
The series consists of squares of consecutive odd numbers
i.e. 1^{2}, 3^{2}, 5^{2}, 7^{2}, 9^{2},.....
So, missing term = 11^{2} = 121.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
1, 9, 25, 49, ?, 121
The given series consists of squares of consecutive odd numbers
i.e. 1^{2}, 3^{2}, 5^{2}, 7^{2},.....
So, missing term = 9^{2} = 81.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
2,2,5, 13,28,?
The pattern is + 0, + 3, + 8, + 15, ..... i.e. + (l^{2}  1), + (2^{2}  1), + (3^{2}  1), + (4^{2}  1), .....
So, missing term = 28 + (5^{2}  1) = 28 + 24 = 52.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
0, 2, 8, 14, ?, 34
The pattern is + 2, + 6, + 6, + 10, + 10,.....
So, missing term = 14 + 10 = 24.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
1, 5, 14, 30, 55, 91, ?
The pattern is + 4, + 9, + 16, + 25, + 36, ..... i.e. + 2^{2}, + 3^{2}, + 4^{2}, + 5^{2}, + 6^{2},.....
So, missing term = 91 + 7^{2} = 91 + 49 = 140.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
In the series 10, 17, 24, 31, 38,.....which of the following will be a number of the series ?
The given series consists of numbers each of which, on dividing by 7, leaves a remainder 3.
No other number except 346 satisfies the property.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
240, ?, 120, 40, 10, 2
The pattern followed is
240÷1=240
240÷2=120
120÷3=40
40÷4=10
10÷5=2
Hence the number is 240
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
2,3,8,27, 112,?
The pattern is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4,.....
So, missing term = 112 x 5 + 5 = 565.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
6, 17, 39, 72, ?
The pattern is + 11, + 22, + 33, .....
So, missing term = 72 + 44 = 116.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
20, 20, 19, 16, 17, 13, 14, 11, ?, ?
Let the missing terms of the series be x_{1} and x_{2}.
Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11, xv x2 is a combination of two series :
I. 20, 19, 17, 14, x_{1} and II. 20, 16, 13, 11, x_{2}
The pattern in I is  1,  2,  3,......So, missing term, x_{1} = 14  4 = 10.
The pattern in II is  4,  3,  2,......So, missing term, x_{2} = 11  1 = 10.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
24, 60, 120, 210, ?
The pattern is + 36, + 60, + 90,.....i.e. + [6 x (6 + 0)], + [6 x (6 + 4)], + [6 x (6 + 9)],...
So, missing term = 210 + [6 x (6 + 15)] = 210 + 126 = 336.
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Question 
625, 5, 125, 25, 25, ?, 5
The given sequence is a combination of two series :
I. 625, 125, 25, 5 and II. 5, 25, ?
The pattern in I is ? 5, while that in II is x 5. So, missing term = 25 x 5 = 125.
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