The task is to generate the correct answer for a given math problem.

Problem: a snooker tournament charges $ 45.00 for vip seats and $ 20.00 for general admission ( “ regular ” seats ) . on a certain night , a total of 320 tickets were sold , for a total cost of $ 7500 . how many fewer tickets were sold that night for vip seats than for general admission seats ?
276

Problem: how many multiples of 7 are there between 10 and 100 ( both are inclusive ) ?
13

Problem: after decreasing 24 % in the price of an article costs rs . 684 . find the actual cost of an article ?

900