The length of each side of an equilateral triangle having an area of 4√3 cm2 is?  Choose the correct choice from the following choices:
A) 3:4
B) 3:9
C) 3:7
D) 3:1
E) 3:2
Let the speed of the train be x km/hr and that of the car be y km/hr.   Then, 120/x + 480/y = 8 or 1/x + 4/y = 1/15 --- (i)   3:4nd, 200/x + 400/y = 25/3 or 1/x + 2/y = 1/24 --- (ii)   Solving (i) and (ii), we get x = 60 and y = 80   Ratio of speeds = 60:80   = 3:4   3:4nswer:3:4
<result>A</result>
The length of each side of an equilateral triangle having an area of 4√3 cm2 is?