2013 · Q13
The short and long hands of a clock are 4 cm and 6 cm long respectively. Then the ratio of distances travelled by tips of short hand in 2 days and long hand in 3 days is
Elementary MathematicsMensuration
- A4 : 9
- B2 : 9
- C2 : 3
- D1 : 27
Explanation
Short: 2×2×2π×4; long: 3×24×2π×6; ratio = 32π:864π = 1:27. Answer D.