First, we need to know the number that chose vanilla flavor
Total number of classmate = 300
percentage of those that love Vanilla = 100% - 14% - 42% - 18% = 26%
Number of people that love Vanilla = 26% of 300 =


Next, find the number of those that chose strawberry
Number of people that love Strawberry = 18% of 300


The number that chose vanilla than strawberry is 78 - 54= 24