Question
640Â Â Â 1920Â Â Â 240Â Â Â 720Â Â Â 92Â Â Â
270 In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number.Solution
640Â Â 
  3 = 1920 1920 
  8 = 240 240  
   3 = 720 720 
   8 = 90 90  
   3 = 270
What should come in place of (?) question mark in the given number series.
2, 6, 15, 31, 56, ?
98, 89, 114, 50, 194, ?
13    13      26       ?      832       13312
...- What will come in place of the question mark (?) in the following series?
6, 6, 9, ?, 32, 56 What will come in place of the question mark (?) in the following series?
72, 78, 90, ?, 132, 162
Find the missing number in the given number series.
2, 5, 11, 23, 47, ?101, 103, 107, 109, 113, ?
250 Â Â Â 25 Â Â Â Â 5 Â Â Â Â ? Â Â Â Â 0.6 Â Â Â Â Â 0.3
What will come in place of the question mark (?) in the following series?
60, 110, 224, 463, ?, 1716
What will come in place of the question mark (?) in the following series?
24, 25, 34, 59, 108, 189, ?
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