四年级有学生490人,其中男生256人达标,女生194人达标.达标人数占总人数的百分之几?男生达标人数比女生多百分之几?
第1个回答 2019-11-26
(256+194)÷490,
=450÷490,
≈91.84%;
答:达标人数占总人数的91.84%.
256÷490-194÷490,
≈52.24%-39.59%,
=12.65%;
答:男生达标人数比女生多12.65%.
=450÷490,
≈91.84%;
答:达标人数占总人数的91.84%.
256÷490-194÷490,
≈52.24%-39.59%,
=12.65%;
答:男生达标人数比女生多12.65%.