1. Looking at this calculation below, and assuming that each unique letter represent a unique digit from 0-9, can you tell me what 4-digit number ABCD represents (there is only one possibility):
ABCD x 9 = DBCA
2. Pick any three digit number where the first digit and the last digit are not the same. Now reverse the digits and subtract the smaller number from the larger. Take the result and reverse its 3 digits (using leading zeros if necessary) and add this reversed number to the result of the subtraction. What is your final result?
3. Assuming the letters A-K represent the first 11 prime numbers in their order from smallest to largest. A prime number is only divisible by itself or 1. Therefore 1 is the smallest prime and is represented by A. What is the value X obtained from the calculation below:
(A*B*C-D)*E*F*G+H+I+J+K = X
Using the numbering system from question number 3, add J years to the year of the battle of Hastings. What is your result? (OK, there's your token historical battle question.)
If you get the answers, rather than post them, so that everyone can have a chance to figure them out, just post a reply which indicates as subtly as you can that you have figured them out correctly.
kp
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