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Strange Sequence (Posted on 2003-03-25) Difficulty: 4 of 5
What are the next two numbers in the following sequence ?

10, 40, 90, 61, 52, 63, 94, ? , ?

(Explain how you arrived at your result).

See The Solution Submitted by Ravi Raja    
Rating: 2.2500 (8 votes)

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Solution Puzzle Solution Comment 7 of 7 |

The next two numbers in the given sequence are : 46 and 18

EXPLANATION:

The sequence is constituted by considering the square of the ith term and reversing the digits.

The first 9 squares of positive integers are:

01, 04, 09, 16, 25, 36, 49, 64 and 81 and accordingly, the first 9 terms of the sequence are:

First Term: 10
Second Term: 40
Third term: 90
Fourth term: 61
Fifth term:  52
Sixth term: 63
Seventh term: 94
Eighth Term: 46
Ninth Term: 18


  Posted by K Sengupta on 2008-02-26 11:56:57
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