I wonder which problem?

Number Theory Level 2

A recent problem I posted had the following properties:

  • A sixth of all viewers got the answer correct
  • A quarter of all people who attempted got the answer correct

If the fraction of the number of people who attempted to the number of people that viewed can be represented as \(\dfrac {a}{b}\), where \(a\) and \(b\) are coprime positive integers, what is \(a+b\)?


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