Mathematics
Senior High
Resolved
求解
例題12 取捨原理(三)
常見段考題
因應網路視訊教學,老師對某班級40位同學做手機及電腦設備調查,發現可使用手機
的有35人,可使用電腦的有30人,則該班同學中可以使用手機也可以使用電腦的最少
有25人。
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
![課本的例子是：5人輪流抽，[抽出後放回]，5支籤只有1支中籤。A搶先第一個抽，B排第二。且... - 1](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1802820/thumb_l_webp_C7F26A35-6519-4002-8D25-16BE65D14396.webp?Expires=1777489323&Signature=RKHXyurbyIM-fO3Nmt7db4mcKsN5tRy3~wILP08AqwBLwUClJPY9zDphbZDn2TK7mKsJ7PRZ1ZCR8coTlNMUOMJsKb~V8LnlkFYW-2hLy9qcYZii7-bUQjSYoQ23CEeoejWokleV8lWQr-~SMWqJN0tXs18NSz8ovUj2Xf3joa39oQ2eg1HABHA9Qxx5iG5tKALC562-iEQnYzp-oOt46Y25u2vlFJhKAHmq6lBOxqqXz9ieUGRhcZNpfMblOVSV1isYObLSDlEdWrsLNog85INEgy0~aq5jRYPNwq3QTsw2jgcJl-d8wNLUZx7wzVITIbcxkOmtfDHL2eMskDsY5A__&Key-Pair-Id=K2W722D70GJS8W&Expires=1777489323&Signature=bAGYWaYIdlyTTrKhmvo4lXpsM0PQwqMw4TYWgzFVdJMsr1YwiHVMc284QdGifjtRcDQLppqZPMvqnuL-Pp2HxKz9eloaqR8XwCAqEpkg~pcQIk5hhufhSvDxSuTM3j8-IvR5M6ESYBKu7JIVdtvE2KB5nzEQ3SbhbahIcMivRQKMRMf0dq4x9Lh2UTeMf8T3dea-X5z1NkOP8CF6yuF1MH8CPcL0jQTlvksmrZPy1JXJP6s9HTRToKqCRIrZPbaWyE~Zuzmn6OKa-PGFs3gWv0JZMDMIBg~aPFmVVDhj~er5L2XzE9kV8V9U2uWix3vGJBztM8ZaI9WEO-W4W5PSTA__&Key-Pair-Id=K2W722D70GJS8W)
謝謝