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

Problem: the set s consists of 5 numbers : { 1 , 2,3 , 4,5 } . if all possible subsets including the null set are created and one subset is chosen at random , what is the probability that the subset has 3 or 4 as its largest number ?
3 / 8

Problem: the population of a city is 415600 . it increased by 25 % in the first year and decreased by 30 % in the second year . what is the population of the city at the end of second year ?
363650

Problem: 10 play kabadi , 30 play kho kho only , 5 play both gmaes . then how many in total ?

40