(b) 4:1
In ∆ABC, D is the midpoint of AB and E is the midpoint of AC.
Therefore, by midpoint theorem,
Also, by Basic Proportionality Theorem,
AD/DB = AE/EC
Also,
AB = AC = BC (∵∆ABC is an equilateral triangle)
So, AD/DB = AE/EC = 1
In ∆ABC and ∆ADE, we have: