Question
Find the value of c. -3Â Â Â Â Â -2Â Â Â
 -12    -9    -100       -375  31    a      b     c     d             e In each of the following questions, a number series is given. After the series a number is given followed by (a), (b), (c), (d) and (e). You have to  complete the series starting with the number given following the sequence of the given series.Solution
The pattern of the first line series is obtained as, -3 × 1  + 1³ = -2 -2 × 2  - 2³ = -12 -12 × 3  + 3³ = -9 -9 × 4 - 4³ = -100 -100 × 5 + 5³ = -375 Completing the next series as, 31, a = 31 × 1 + 1³ = 32 b = 32 × 2 - 2³ = 56 c = 56 × 3 + 3³ = 195 The value of c = 195
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187
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