There are 42 students in S1A.The number of boys is 4/3 times that of girls.Find the repective number of boys and girls t

问题描述:

There are 42 students in S1A.The number of boys is 4/3 times that of girls.Find the repective number of boys and girls there.

S1A 里有42位同学,男生是女生的4/3,问男生和女生各所少人?
设女生x人
4/3x + x =42
x =18
则女生18人,男生4/3x = 4/3*18 =24人
答:女生 18人,男生 24人