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## 'Inspector Remorse' printed from http://nrich.maths.org/

Two murders take $2x$ hours, $6$ car thefts: $6 \times
\frac{x}{6}$, 4 bank robberies: $4 \times \frac{x}{2}$

Total = $2x + 2x + x = 5x$.

*This problem is taken from the UKMT Mathematical Challenges.*