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2016ɾвԻ̵ϵ

2016-09-24 14:43:23| й
һ˷ļ

ĿһŹ50λο͵ijΣȥAο35λȥBο32λȥCο27 λȥABο20λȥBCο15λ㶼ȥο8λ2λοȥһţ1λο㶼û ȥô50λοжλǡȥ?

A.29 B.31 C.35 D.37

Դ磬йѼ

𰸡A

йǡȥxˣݳԭ35+32+27-x-2×8+1=50x=29ѡA

ϴ𰸽йѼԼĴ𰸼˳Ͽ뿼г룬鿼ڿʱοѡ

̵㡿Ϲ㲻ᣬɳ飬ȥŲᣬŲԡ

“ż̿”ļ

Ŀij͵ֻһ̨ȱ۵ƽһ5ǧ˵롣˿Ҫ10ǧ˴ףԱȽ̣׷̣ƽ󽫳ƵõĴ׸˿;ٽ̣׷̣ƽֽڶγƵĴ׸˿ֳͣƷ˭?

A.˿ B. C.һ D.ȷ

Դ磬йѼ

𰸡A

й̱۳Ϊ1۳Ϊ2һγƵô5×2÷1=10ǧˣڶγƵô5×1÷2=2.5ǧˣܹƵ10+2.5=12.5ǧˣȻֳƷԹ˿͸

ϴ𰸽йѼԼĴ𰸼˳Ͽ뿼г룬鿼ڿʱοѡ

̵㡿Կʼˣɣƽòԭֵ֪ͺˡ

“”ļ

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