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A disc jockey has 7 songs to play. Five are slow songs, and two are fast songs.?

A disc jockey has 7 songs to play. Five are slow songs, and two are fast songs. Each song is to be played only once. In how many ways can the disc jockey play the 7 songs if •The songs can be played in any order. •The first song must be a slow song and the last song must be a slow song. •The first two songs must be fast songs.

Public Comments

1. I don't understand: Your second comment says the first has to be a slow song, but the third says that the first has to be fast. Contradiction, so no ways at all!