Asha can prepare a science exhibit in 18 days and Deepa can prepare it in 24 days. What is the ratio of Asha's efficiency to Deepa's efficiency?

Explanation

1. 01

   Efficiency is work per day: Asha $\frac{1}{18}$, Deepa $\frac{1}{24}$.

2. 02

   Ratio = $\frac{1}{18} : \frac{1}{24} = 24 : 18 = 4 : 3$.