What should come in place of the question mark (?) in the following number series?
5 ? 4 7.5 17 45
(a) 3.5 (b) 3 (c) 2.5 (d) 2 (e) None of these
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What should come in place of the question mark (?) in the following number series? 2 9 30 105 ? 2195
The series is as follows starting from the second number denote the previous number in the series by x. x × 1 + 1 × 7, x × 2 + 2...
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What should come in place of the question mark (?) in the following number series? 3 4 12 45 ? 1005
The series is as follows starting from second number x × 1 + 12 , x × 2 + 22, x ×3 + 32, x × 4 + 42, x ×5...
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What should come in place of the question mark (?) in the following number series? 18 38 120 ? 2480 14910
(c) The given number series is based on the following pattern: 18 × 2 + 2 × 1 = 38 38 × 3 + 3 × 2 = 120 120 × 4 +...
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What should come in place of the question mark (?) in the following number series? 1 3 9 31 ? 651
(c) The series is as follows × 1 + 2, × 2 + 3, × 3 + 4, ...
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What should come in place of the question mark (?) in the following number series? 15 30 ? 40 8 48
(a) The series is as follows x2x1/3,x4x1/5,.......
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What should come in place of the question mark (?) in the following number series? 3 3 12 108 ? 43200
(b) The pattern of the series is as follows × 12, × 22, × 32, × 42, × 52 Hence, required number = 1728.
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What should come in place of the question mark (?) in the following number series? 8 20 50 125 ? 781.25
(d) The pattern of the series is as follows : 8 × 2.5 = 20 20 × 2.5 = 50 50 × 2.5 = 125 ? = 125 × 2.5 = 312.5
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What should come in place of the question mark (?) in the following number series. 12 6.5 7.5 12.75 27.5 71.25 ?
(b) The given number series is based on the following pattern: 12 × 0.5 + 0.5 = 6.5 6.5 × 1 + 1 = 7.5 7.5 × 1.5 + 1.5 = 12.75 12.75 ×...
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What should come in place of the question mark (?) in the following number series. 12 12 18 45 180 1170 ?
(e) The pattern of series is as follows : 12 × 1 = 12, 12 × 1.5 = 18, [0.5 + 1 = 1.5] 18 × 2.5 = 45, [1+ 1.5 = 2.5] 45×...
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What should come in place of the question mark (?) in the following number series. 22 23 27 36 52 77 ?
(c) The given number series is based on the following pattern: 22 + 12 = 22 + 1 = 23 23 + 22 = 23 + 4 = 27 27 + 32 =...
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