Pattern is, +4, +8, +16, +32, so next will be +64
81+64 = 145
Similar Questions :
1. What number should come next in the series, 1, 2, 3, 5, 8, ?
17
12
9
13
Answer: Option D
Explanation:
In this series, each term is the sum of preceding two terms as,
1+2 = 3
3+2 = 5
5+3 = 8
Next term in the series will be,
8+5 = 13
2. 1,2,6,24, ?
110
118
120
122
Answer: Option C
Explanation:
Pattern is *2, *3, *4
So next number is the series will be *5
24*5 = 120
3. 11, 12, 17, 18, 23, 24, (....) . Which term will come next ?
27
29
31
33
Answer: Option B
Explanation:
Please check, given sequence is combination of two seies
[Note: Usually when terms are more than 5, then chances are there that it may contain 2 series.]
Series 1 = 11, 17, 23
Series 2 = 12, 18, 24
So there is pattern +6 in each term
Next term will be 23+6 = 29
4. 21,25,33,49,81, ?
140
145
147
159
Answer: Option B
Explanation:
Pattern is, +4, +8, +16, +32, so next will be +64
81+64 = 145
5. 1, 2, 5, 12, 27, 58, 121, ?
248
244
198
190
Answer: Option A
Explanation:
Pattern in the series is *2+1, *2+2, *2+3,.....
Term which replaces the question mark in the series is
121 * 2 + 6 = 248