①男工与女工的比是4：7，女比男多15人，男、女工各多少人？
②男工与女工的比是4：5，男工有20人，女工多少人？
③男工与女工的比是4：5，女工有20人，男工多少人？
④男工与女工的比是4：5，男、女工共36人，男、女工各多少人？
相关试题
﹣
=
+
= 2﹣
= 0.25+
=
×
=
÷
= 12÷
=
×18=
=
=
=
=
=
=
= 1.25×32×0.25=
=
﹣
=
×
=
÷
= 1÷40%= 4÷
﹣
= 
÷22= 80%÷
= 26×
=
×
÷24×5= 2300﹣200= 0.8×0.4=
÷
=
：9=
10﹣4.2= 8×12.5%= 26.26÷26= 1.2﹣
=
÷20=
400÷5÷8= 70+30×2= 0.25÷
=
+2= 0.32=
99×0.2+0.2=
×
= 3.36×0.1= a÷2= 48÷60=
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