At a certain ice cream parlor, 1/9 of the ice cream cones sold in one week were pistachio and 1/4 of the remaining ice cream cones sold were rocky road. If n of the ice cream cones sold were rocky road, how many were pistachio?

A. 1/2*n

B. 3/4*n

C. 2/n

D. \((3 \frac{3}{4})*n\)

E. 5n[/quote]

Let the total no. of ice creams = x

Pistachios = x/9 and rocky road = (x- x/9) / 4 = (8x/9)/4 = 2x/9

Now , 2x/9 = n

x = 9n/2

therefore, pistachios = n/2

Answer - A

_________________

"Give without remembering, take without forgetting"

- Kudos