MatheMagic
Which number when reversed and squared will give its own squared value in reverse.
If the wrong answer is one what is the right answer ?
If the wrong answer is one what is the right answer ?
Labels: mathemagic, thinktank
posted by Rajesh Lal at
11:09 PM
16 Comments:
the right answer is 11
11 in reverse is 11
11 squared is 121
121 in reverse is 121
11 or 22
22 in reverse is 22
22 squared is 484
484 in reverse is 484
111 works as well
111 Squared is 12321
As does:
1111
11111
111111
1111111
11111111
111111111 which is 12345678987654321 when squared.
12 also works
12 squared equals 144
21 squared equals 441
13 also works:
when reversed (31) and squared (961)the answer is the reverse of 13 squared (169)
20 also works:
when reversed (02) and squared (004) the answer is the reverse of 20 squared (400)
2 works too.
Frogfish
the anwser is eather 1 2 11 111 1111 and so on
I think 10 does too. 10 * 10= 100, 10 reversed is 1 1*1= 1 100 re versed is 1
2,3,10,11,12,13,20,21,22,30,31,...
There is a total of 614 answers under 1,000,000.
I like 31111:
31111^2 = 96789321
11113^2 = 12398769
ride each others camels!
^ I think all those numbers fried your brain and the wires have got mixed up.
That's another puzzle.
1 is wirght
0 so easy ? -_-
1, 11, 111, 1111, so on and also
2, 12, 13, 20, 0
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