2219 /www/nrich/html/content/04/weekly/prob19/ 1 2010-08-07T12:35:20 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><br></br> <p>Inspector Remorse estimates that he can solve the average murder in $x$ hours, a bank robbery in half that time, and a car theft in one third of the time he takes to solve a bank robbery.</p> <div>How much time would he expect to take in solving two murders, six car thefts and four bank robberies?</div> <div> </div> <div>If you liked this problem, <a href="http://nrich.maths.org/6708">here is an NRICH task</a> which challenges you to use similar mathematical ideas.  </div> <br></br></mdoxml> <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><br></br> <p>Two murders take $2x$ hours, $6$ car thefts: $6 \times \frac{x}{6}$, 4 bank robberies: $4 \times \frac{x}{2}$</p> <p>Total = $2x + 2x + x = 5x$.</p> <br></br></mdoxml> 2 3 0 0 0 0 0 Algebra Algebra - generally Secondary Mapping Document Equations and formulae LS Secondary Mapping Document Fractions, decimals, percentages and ratio