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What should come in place of question mark (?) in the following number series?
12 14 17 13 8 14 21 13 4 ?
12 + 2 = 14; 14 + 3 = 17
17 - 4 = 13; 13 - 5 = 8
8 + 6 = 14; 14 + 7 = 21
21 - 8 = 13; 13 - 9 = 4
So, 4 + 10 = 14
What will come in place of the question mark (?) in the following number series?
15 12 17 10 ? 8 21 6
15 - 3 = 12; 12 + 5 = 17
17 - 7 = 10; 10 + 9 = 19
19 - 11 = 8; 8 + 13 = 21
21 - 15 = 6
949 189.8 ? 22.776 11.388 6.8328
949 *0.2 = 189.8
189.8 *0.3 = 56.94
56.94 *0.4 = 22.776
22.776 *0.5 = 11.388
11.388 *0.6 = 6.8328
121, 144, 190, 259, ?, 466
121 + 23*1 = 144
144 + 23*2 = 190
190 + 23*3 = 259
259 + 23*4 = 351
14 43.5 264 ? 76188
14*3 + 1.5 = 43.5
43.5*6 + 3 = 264
264*12 + 6 = 3174
3174*24 + 12 = 76188
25 53 163 657 3291 ?
25*2 + 3 = 53
53*3 + 4 = 163
163*4 + 5 = 657
657*5 + 6 = 3291
3291*6 + 7 = 19753
12 21 59 231 1149 ?
12*2 - 3 = 24 - 3 = 21; 21*3 - 4 = 63 - 4 = 59
59*4 - 5 = 236 - 5 = 231; 231*5 - 6 = 1155 - 6 = 1149
1149*6 - 7 = 6894 - 7 = 6887
What should come in place of the question mark '?' in the following number series?
120, 15, 105, 17.5, 87.5, ?
120/8 = 15
15*7 = 105
105/6 = 17.5
17.5*5 = 87.5
87.5/4 = 21.875
499, 622, 868, 1237, 1729, 2344, ?
499 + 1*123 = 622;
622 + 2*123 = 868
868 + 3*123 = 1237;
1237 + 4*123 = 1729
1729 + 5*123 = 2344;
2344 + 6*123 = 3082
1 3 24 360 8640 302400 ?
1*3 = 3
3*(3+5) = 24
24*(3+5+7)= 360
360*(3+5+7+9) = 8640
8640*(3+5+7+9+11) = 302400
302400*(3+5+7+9+11+13) = 14515200
Correct (-)
Wrong (-)
Skipped (-)