Đổi 1 giờ 20 phút = 4/3 giờ
1 giờ người thứ nhất làm được: 1 : 3 = 1/3 (công việc)
1 giờ cả hai người làm được: 1 : 4/3 = 3/4 (công việc)
1 giờ người thứ hai làm được: 3/4 - 1/3 = 5/12 (công việc)
Thời gian người thứ hai làm xong công việc: 1 : 5/12 = 12/5 (giờ)
tin mik đi
mik còn hỏi cô giáo nữa đấy
Cho mình xin lỗi! Hôm qua do đọc đề không kĩ nên mình làm lộn ! Đáp số đúng là 2,4
bạn vũ anh tú làm đúng đấy ! mình cũng có hướng giải như vậy
thật ra là mình ra rồi chỉ hỏi vậy thôi
12/5 mới đúng !minh lam trên Violympic rồi
la 12/5 minh la 100% day
k giup minh nhe
theo minh la 12/5 hoac 2,4 la dung
nhung minh van con phan van voi dap an cua cac ban
mong cac ban giup do
12/5 Đúng 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
12/5 dung
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000% nhé bn nhớ cho mình nhé
Là 12/5 đấy ! Cách giải của mình giống cách giải của Vũ Anh Tú
Mình cũng có hướng giả giống Vũ Anh Tú mình có hỏi cả thầy nữa cơ
12/5 đúng 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000% luôn nếu sai thì bố chết mẹ què
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