Tickets to a certain concert sell for $20 each

Tickets to a certain concert sell for $20 each. The first 10 people to show up at the ticket booth received a 40% discount, and the next 20 received a 15% discount. If 60 people bought tickets to the concert, what was the total revenue from ticket sales?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #34860