Answer :
Final answer:
Jan's starting number was 8.
Explanation:
To find Jan's starting number, we need to work backwards from the final answer of 36. Let's go step by step. The final answer of 36 was obtained by squaring the result of dividing a number by 3. This means the result of dividing by 3 was the square root of 36, which is 6.
So, let's backtrack. If dividing by 3 gives us 6, then the number before dividing must be 18.
If we subtract 7 from 18, we get 11.
And if we add 5 to 11, we get 16.
Finally, if we double the starting number, it would be 8.
Therefore, Jan's starting number was 8.
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