At a certain bakery, \(\dfrac14\) of the cookies sold in one week were chocolate chip and \(\dfrac15\) of the remaining

[Gmat_mission]

At a certain bakery, \(\dfrac14\) of the cookies sold in one week were chocolate chip and \(\dfrac15\) of the remaining cookies sold were oatmeal raisins. If \(x\) of the cookies sold were oatmeal raisins, how many were chocolate chips?

A. \(\dfrac1{20}\cdot x\)

B. \(\dfrac9{20}\cdot x\)

C. \(\dfrac45\cdot x\)

D. \(\dfrac54 \cdot x\)

E. \(\dfrac53 \cdot x\)

Answer: E

Source: Princeton Review