eqao grade 6 math 2012 answers
\quad |S| = 10, \quad |N| = 5 \] Number who like either sport: \[ |B \cup S| = |B| + |S| - |B \cap S| \] Total liking at least one sport: \[ 30 - 5 = 25 \] So: \[ |B \cup S| = 25 \] Plug in the numbers: \[ 25 = 18 + 10 - |B \cap