Production rate

[pakaskwa]

Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?

A. 4
B. 6
C. 8
D. 10
E. 12

I got the answer from a very time-consuming process (about 6 minutes). I know I'm missing something. Please help.

[vittalgmat]

This has already been answered. I think u saw this before posting the Q.

https://www.beatthegmat.com/how-many-day ... 11577.html