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

Problem: a van takes 5 hours to cover a distance of 495 km . what speed in kph should the van maintain to cover the same distance in 3 / 2 of the previous time ?
66

Problem: anne bought doughnuts for a class breakfast party . she bought 9 chocolate doughnuts , 7 coconut doughnuts , and 9 jam - filled doughnuts . how many doughnuts did anne buy in all ?
25

Problem: 1.5 , 2.5 , 4.5 , 7.5 , 11.5 , ( . . . . )

16.5