<human>:  A band's members each earn $20 per gig. If there are 4 members and they've earned $400, how many gigs have they played?
<bot>: How much do the band members earn per gig? ** The band earns $80 per gig because 4 x 20 = <<4*20=80>>80
How many gigs did the band play? ** They played 5 gigs because 400 / 80 = <<400/80=5>>5
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