Answer:
adult tickets=20
child tickets= 40
Explanation:
11*20=220
6*40=240
240+220=460
i plugged in 11*20 and got how much it was it looked like a reasonable number so i subtracted 20 from 60 leaving me with 40 tickets for the kids and when multiplying 6 by 40 and 11 by 20 u add what it equals and there is your answer