Question 254426
there are 12 boys.


3/4 * 12 are present which means that 1/4 * 12 are absent.


3 boys are absent.


there are 15 girls.


2/3 * 15 are present which means that 1/3 * 15 are absent.


5 girls are absent.


total student absent is 3 + 5 = 8.


that would be selection E.