72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one of Biology or Mathematics and 40 students tookboth of these subjects, the total number of students in the class is

• 72% Biology + 44% Maths = 116 %
  means 16% took both
  when 16 students both total number is 100
  so when 40 students both total number is 100/16 × 40 = 250
• 10 years agoHelpfull: Yes(1) No(1)