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Puzzle ZZMR 

?

Can you find a number such that...

...its double is fourteen more than its quarter?

Puzzle Copyright © Kevin Stone

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Answer
8.

Reasoning
We need a number (N) such that:

2 x N = 14 + N
             —
             4

Multiply throughout by 4 to give:

8 x N = 56 + N

So:

7 x N = 56

So N = 8.

Double-Checking
Its double is 16.

Its quarter is 2.

So its double is fourteen more than its quarter.

 

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