Tuesday, September 30

Math Puzzle – Find the next number

By Vincent CruzAugust 29, 2011Updated:July 5, 2022 Science 11 Comments1 Min Read

8, 15, 27, 51, ?

Sourabh Thawait on January 31, 2014 12:34 pm

99 is answer.

Reply
Soya Chhin on February 7, 2012 12:17 am

what is that? I don’t how to solve it and I don’t understand . It’s not SEQUENCE ? Could you explain me?

Reply
Ashfaq on August 29, 2011 8:54 pm

8×2-1=15
15×2-3=27
27×2-3=51
51×2-1=101
so 101?

Reply
- Rishabh Dev on August 29, 2011 8:57 pm
  
  Well, the question was supposed to be – 9, 15, 27, 51, ?
  
  But It’s always nice to see new patterns emerging from a “wrong” question – somewhat like order emerging from chaos.
- kavita on August 29, 2011 9:03 pm
  
  +6
  +6*2
  +12*2
  +24*2
  so ans is 99…..:)
- Rishabh Dev on August 29, 2011 9:08 pm
  
  Yes It Is. :)
kavita on August 29, 2011 8:42 pm

64
as d pattern is 2^3,
(3^2)*2-3……(taking power of 1st as base of 2nd nd vice versa)
3^3
(3^3)*2-3
4^4=64..

Reply
- Rishabh Dev on August 29, 2011 8:47 pm
  
  What about – 9, 15, 27, 51, ?
- Ashfaq on August 29, 2011 8:56 pm
  
  99?
- Rishabh Dev on August 29, 2011 9:13 pm
  
  That’s Correct!
- richmond on September 20, 2011 12:35 am
  
  93