Answer :
If all adult tickets were sold, it would be 9000The difference between an adult ticket and a child ticket is 4
9000-7160 = 1840
1840/4 = 460 = no. of childs tickets1000 - 460 = 540 = no. of adults tickets
9000-7160 = 1840
1840/4 = 460 = no. of childs tickets1000 - 460 = 540 = no. of adults tickets