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

[Q]: Problem: if x is to be chosen at random from the set { 1 , 2 , 3 , 4 } and y is to be chosen at random from the set { 6 , 7 } , what is the probability that xy will be even ?
[A]: 1 / 6


[Q]: Problem: when the price of a product was decreased by 20 % , the number sold increased by 60 % . what was the effect on the total revenue ?
[A]: 28 %


[Q]: Problem: what is the total number of integers between 10 and 50 that are divisible by 2 ?
[A]:
19