Question

In a class of 30 students all of them have brothers or sisters or both 19 have a brother 16 have a sister

Answer 1

Answer:

14 Bro and 11 Sis

Step-by-step explanation:

if 19 have brothers and 16 have sisters

then 19+16-30 have both brothers and sisters

therefore 5 have bother brother ans sister

so 19-5 =14 have brother only

and 16-5=11 have sisters only