What is the next term ?

61 , 52 , 63 , 94 , 46 , ??

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- Apr 14th 2010, 11:53 PMsimplependulumWhat is the next term ?
What is the next term ?

61 , 52 , 63 , 94 , 46 , ?? - Apr 15th 2010, 12:38 AMRapha
Hi

I think the answer is 18, because

$\displaystyle 4^2 = 16 \Rightarrow 61$

$\displaystyle 5^2 = 25 \Rightarrow 52$

$\displaystyle 6^2 = 36 \Rightarrow 63$

$\displaystyle 7^2 = 49 \Rightarrow 94$

$\displaystyle 8^2 = 64 \Rightarrow 46$

$\displaystyle 9^2 = 81 \Rightarrow 18$

Yours

Rapha - Apr 15th 2010, 07:27 AMsimplependulum
Exactly ! I found this problem from a book I read a year ago . This trick has been etched in my mind , haha (Rofl) .