Tuesday 12 February 2013

Number Series Puzzles - 3

1. What number should replace the question mark ?

    1,3,4,7,11,18,29,?

A:- 47

      1
      3
      1+3 = 4
      4+3 = 7
      7+4 = 11
      11+7 = 18
      18+11 = 29
      29+18 = 47


2.  What number should replace the qustion mark ?

      123,124,126,132,133,136,142,143,147,?

A:- 154

      123
      123+1 = 124
      124+2 = 126
      126+6 = 132
      132+1 = 133
      133+3 = 136
      136+6 = 142
      142+1 = 143
      143+4 = 147
      147+7 = 154

3.  What number comes next in this sequence ?

      1,3,11,4,7,?

A:-  239

      1
      1*2 = 2+1 = 3
      3*3 = 9+2 = 11
      11*4 = 44+3 = 47
      47*5 = 237+2 = 239


   
 

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