IMC 2008 Q11
| \(S\) is 25% of 60 | 60 is 80% of \(U\) | 80 is \(M\)% of 25 |
11. What is \(S + U + M\) ?
- A 100
- B 103
- C 165
- D 330
- E 410
Intermediate Mathematical Challenge 2008, Question 11. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: E 410
\(S\) = 25% of 60 = 15. \(U = \dfrac{60}{0{\cdot}8} = 75\). \(M = \dfrac{80}{0{\cdot}25} = 320\). So \(S + U + M = 410\).
Solution © UK Mathematics Trust, from the IMC 2008 solutions.