Problem 2
A. 36 totall Becuse first 24 students went to coron then 12 more is 36 students
B. Well first 18 students went to Tubbatona then 12 more came to Tubbatona so 30 in totall visited Tubbatona
C. 11 made a trip to El nido Because look in the text (11 made a trip to coron and el nido ) and 20 visited only see (20visited El Nido)
D. so it says 10 seen the three tourist spots and there are 50 students so 50-10=40 so 40 didnt!
Hope I did not take to long hope this helps to!