Number Squared

What digit fills the ? in the last square?

4 5     6 7     8 9
2 0     4 2     7 ?

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May 26th, 2012 | Category: Brain Riddle, Mathematical |  Email This Riddle

3 guesses to Number Squared

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• Sachin Daga

  June 15, 2012 at 4:26 AM

  answer will be 4 on question mark

• Dude

  June 15, 2012 at 4:05 PM

  Nope, keep trying.

• Sachin Daga

  June 16, 2012 at 3:02 AM

  There can be two answer for this:
  First answer will be 2:

  4*5=20
  6*7=42
  8*9= 72

  Second answer will be 5

  4+2=6 – 45 to 67
  5+2=7 – 45 to 67
  6+2=8 – 67 to 89
  7+2=9 – 67 to 89
  2+2=4 – 20 to 42
  0+2 – 20 to 42
  4+7 – 42 to 75
  2+3 – 42 to 75