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Option 5)R-Car

10,    11,    13,    21,     69,     ? The series follows the pattern of +1(1×1+1), +2(2×3+2), +8(8×5+8), +48(48×7+48) and so on. So, at the end, 69+384= 453
25     34   30      39      35     ? The series follows the pattern of +9, -4 and then again +9, -4 and so on. So, at the end, 35+9=44
16      8        12         30          ?        472.5 The series follows the pattern of ×0.5, ×1.5, ×2.5 and so on. So, 30×3.5= 105
126         64         34          20         14         ? The series follows the pattern of ÷2+1, ÷2+2, ÷2+3 and so on. So, 14÷2+5=12 
4        6          14        44            ?         892 The series follows the pattern of ×1+2, ×2+2, ×3+2 and so on. So, 44×4+2=178
30, 34, 43, 59, 84, 120,? The series follows the pattern of +4, +9, +16, +25 and so on. So, at the end, 120+49=169
30, 34, 43, 59, 84, 120,? The series follows the pattern of +4, +9, +16, +25 and so on. So, at the end, 120+49=169
8, 43, 11, 41, __, 39, 17 It is the combination of two series at alternate positions. First series follows the pattern of +3 like 8+3=11, 11+3=14 and so on. Second series follows the pattern of -2 like 43-2=41, 41-2=39 and so on. So, at the end, 11+3=14.
70, 71, 76, __, 81, 86, 70, 91 First, fourth and seventh number is similar. Second, fifth and eighth follow the pattern of +10 and same in case of other numbers.
664, 332, 340, 170, ____, 89 First number is double of second number. So, 89×2= 178
F2, __, D8, C16, B32 Characters follow the pattern of -1 and digits follow the pattern of ×2. So, F-1=E and 2×2=4
72, 76, 73, 77, 74, __, 75 The series follows the pattern of +4, -3 and then again +4, -3 and so on. So, 74+4= 78   
15, __, 27, 27, 39, 39 2nd number is similar to first number. And other numbers follow the pattern of +12. So, 2nd number is 15
83, 73, 93, 63, __, 53, 113, Follow the pattern of -10, +20, -30, +40 and so on. So, 63+40=103
32, 31, 32, 29, 32, 27, 32, ?, ? The series follows the pattern of -1, +1, -3, +3, -5, +5 and so on. So, at the end, 32-7=25, 25+7=32
14, 14, 26, 26, 38, 38, 50, ?, ? 2nd number is similar to first number. And other numbers follow the pattern of +12. So, at the end, first is 50, then 50+12=62
13, 29, 15, 26, 17, 23, 19, ?, ? It is the combination of two series at alternate positions. First series follows the pattern of +2 like 13+2=15, 15+2=17 and so on. Second series follows the pattern of -3 like 29-3=26, 26-3=23 and so on. So, at the end, 23-3=20 and 19+2=21.
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