of the candidates who sat for the international mathematics exam, 18% obtained an A grade, 38% got a B grade, and the rest received a C grade. Given that 77 candidates obtained grade C find the total number of candidates who sat for the examination
Step-by-step explanation: To find the % that scored a c we add 18% and 38% to get 56% We then subtract that from 100% to find that 44% got a C We then divide 77 by .44 to find total amount of students.
