Number Series Questions

• What should come next in thje following number series? 9 7 5 3 1 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 2 9 7 5 3 1 8 6 4 9 7 5
• What should come next in the following number series? 9 8 7 6 1 2 3 4 5 9 8 7 1 2 3 4 5 9 8 7 1 2 3 4 9 8
• 8, 10, 18, 44, 124?
• 13, 25, 61, 121, 205
• 454, 472, 445, 465, 463, 436?
• 12, 18, 36, 102, 360?
• 7, 12, 40, 222, 1742, 17390, 208608
• 6, 91, 584, 2935, 11756, 35277, 70558
• 9050, 5675, 3478, 2147, 1418, 1077, 950
• 325, 314, 288, 247, 191?
• 45, 46, 70, 141,?, 1061.5
• 620, 632, 608, 644, 596?
• 15, 25, 40, 65,?, 195
• 120, 320,?, 2070, 5195, 13007.5
• 27, 38, 71, 126, 203?
• 435, 354, 282, 219, 165?
• 4, 200, 369, 513, 634?
• 11, 18, 29, 42, 59, 80, 101
• 2, 9, 32, 105, 436, 2195, 13182
• 5, 55, 495, 3465, 17325, 34650, 51975