IMC 2017 Q1
1. What is the value of \(\dfrac{2}{5} + \dfrac{2}{50} + \dfrac{2}{500}\)?
- A 0.111
- B 0.222
- C 0.333
- D 0.444
- E 0.555
Intermediate Mathematical Challenge 2017, Question 1. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: D 0.444
\(\dfrac{2}{5} + \dfrac{2}{50} + \dfrac{2}{500} = \dfrac{200 + 20 + 2}{500} = \dfrac{222}{500} = \dfrac{444}{1000} = 0.444\).
Solution © UK Mathematics Trust, from the IMC 2017 solutions. Longer versions with investigations: Solutions and investigations (PDF).