甲数是50,乙数是200,甲数占甲乙两数和的百分之几?
问题描述:
甲数是50,乙数是200,甲数占甲乙两数和的百分之几?
答
50÷(50+200)x100%
=50÷250x100%
=0.2x100%
=20%