IMC 2015 Q2
2. Last year, Australian Suzy Walsham won the annual women's race up the 1576 steps of the Empire State Building in New York for a record fifth time. Her winning time was 11 minutes 57 seconds. Approximately how many steps did she climb per minute?
- A 13
- B 20
- C 80
- D 100
- E 130
Intermediate Mathematical Challenge 2015, Question 2. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: E 130
The number of steps climbed per minute \(\sim \dfrac{1600}{12} = \dfrac{400}{3} \sim 130\).
Solution © UK Mathematics Trust, from the IMC 2015 solutions. Longer versions with investigations: Solutions and investigations (PDF).