Rene finished 30 x 4 = <<30*4=120>>120 pages in 240 minutes.
Lulu finished 27 x 4 = <<27*4=108>>108 pages in 240 minutes.
Cherry finished 25 x 4 = <<25*4=100>>100 pages in 240 minutes.
Therefore they have finished a total of 120 + 108 + 100 = 328 pages in 240 minutes.
#### 328