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Write a hush function to return the 10s digit of a 4-digit key, e.g., for a...

Write a hush function to return the 10s digit of a 4-digit key, e.g., for a key of 9183, return 8. please show work.

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Answer #1 
n%100 gives the last two digits of number n
if you divide two digit number by 10 then it will give 10s place digit.

Example:
9183 % 100 is 83
83 / 10 is 8
This is how we get the 10s place digit

So, hash function is
h(x) = (x%100)/10
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