A person was dialing a telephone. He forgot the last three digits of the six-digit telephone number but rembered that the number formed by the last three digits in the same order was a perfect square. What is the probability he dialed a right number?	Choices:
A) 1/32
B) 1/46
C) 1/49
D) 1/36
E) 1/18
There are following perfect squares less than 1,000:   000 (0^2);   001 (1^1);   004;   009;   016;   025;   036;   049;   064;   081;   100;   121;   144;   ...   961 (31^2).   Total of 32 perfect squares.   The probability = 1/32.   1/32nswer: 1/32.
<result>A</result>
A person was dialing a telephone. He forgot the last three digits of the six-digit telephone number but rembered that the number formed by the last three digits in the same order was a perfect square. What is the probability he dialed a right number?