Question 654593
A+C=1460
OR 
C=1460-A
18A+12C=22752
18A+12(1460-A)=22752
18A+17520-12A=22752
6A=22752-17520
6A=5232
A=5232/6
A=872 ANS. FOR THE NUMBER OF ADULTS.
872+C=1460
C=1460-872
C=588 ANS. FOR THE NUMBER OF CHILDREN TICKETS.
PROOF:
18*872+12*588=22752
15696+7056=22752
22752=22752