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

[EX Q]: Problem: find the area of trapezium whose parallel sides are 20 cm and 18 cm long , and the distance between them is 10 cm ?
[EX A]: 190 cm

[EX Q]: 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 ?
[EX A]: 3 / 8

[EX Q]: Problem: the speed of a boat in still water in 42 km / hr and the rate of current is 5 km / hr . the distance travelled downstream in 44 minutes is :
[EX A]:
34.5 km