Q. What is the next number of the following sequence
10,40,90,61,25,63

• 10 reverse it i.e 01=1^2
  40 reverse it 04=2^2
  90 09=3^2
  61 16=4^2
  25 it wont reverse =5^2
  63 reverse 36=6^2
  so next no 7^2=49 reverse it 94
• 11 years agoHelpfull: Yes(55) No(1)
• 94..
  1^2 = 1
  2^2 =4
  3^2=9
  4^2=16
  ....
  6^2 =36
  7^2 =49
  reversing the order of the result, we will get the next number in the series
• 11 years agoHelpfull: Yes(10) No(0)
• but this rule should also be applied on 25.
• 10 years agoHelpfull: Yes(7) No(3)
• 1^2+3^2=10,2^2+6^2=40,3^2+9^2=90,4^2+12^2=160,5^2+15^2=250
  6^2+18^2=360,7^2+21^2=490.
  so ans:49
  
• 11 years agoHelpfull: Yes(4) No(3)
• 10 reverse it i.e 01=1^2
  40 reverse it 04=2^2
  90 09=3^2
  61 16=4^2
  25 it wont reverse =5^2
  63 reverse 36=6^2
  so next no 7^2=49 reverse it 94
• 10 years agoHelpfull: Yes(0) No(0)