Use Venn diagram.
Start with the intersection, enter 11
math only = 18-11 = 7
physics only = 17-11 = 6
outside both circles: 1
total that sat for the exam = 11+7+6+1 = 25
your turn for the other questions
In an examination 18 candidates passed mathematics 17 candidates passed physics 11 candidates passed mathematics and physics and 1 failed both subjects
Find the number of candidates that passed mathematics only
The number of candidates that passed physics only
The total number of candidates that sat for the examination
3 answers
950 candidates
Please I can't write it much please i beg you please respond i am from lagos
1 answer