Number Puzzles - 004
Give an example of three distinct numbers greater than 10 whose both product and sum are palindromes. The answer is not unique a...
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Number Puzzles - 003
Find six non-zero integers a, b, c, d, e, and f which satisfy the following equations:
All six integers must be different. Th...
Area of Cylindrical Shell
Consider a cylinder with a non-zero thickness with an inner radius of r1 and an outer radius of r2. If the height of the cylinde...
Number Puzzle - 107
Let a be an integer and b is equal to a+2. Let c be an integer formed by concatenating a and b. Give examples of two unique a fo...