Posted by A.A.N on .
In an examination of certain number of candidates 18 passed mathematics, 17 passed physics, 11 passed both mathematics and physics, 1 failed both subjects. Find the number of candidates that passed. i. Mathematics only. ii. Physics only. iii. Total number of candidates that sat for the examination. iv. Show in on venn diagram.

Business mathematics 
Steve,
the number who passed something is
18+1711 = 24
Now just draw the usual Venn diagram to answer the questions.