tim hieu cua hai so biet so lon gap 4 lan so be va biet khi cong hai so do voi tong cua chung thi bang 480 hieu cua hai so do la bao nhieu
hieu cua hai so la 17.6 biet 6 lan so lon hon 4 lan so be 176.4 tim tong 2 so
hieu cua hai so la 17.8.biet 6 lan so lon hon 4 lan so be 176.4 don vi.tong cua hai so la:
hieu cua hai so la 17.8.biet 6 lan so lon hon 4 lan so be 176.4 don vi.tong cua hai so la:
hieu hai so bang 5 lan so be. tim hieu hai so biet tong cua chung la 784
hieu cua 2 so la 62,8.neu tang so lon them 2,6 don vi va giam so be di 4,3 don vi thi 2 lan so lon moi bang 3 lan so be moi.so lon ban dau la....
hieu cua 2 so la 57.65 biet rang so lon gap 4 lan so be
tinh tong cua 2 so
TRA LOI CAU HOI SAU:
cau1:1/3 cua 186 bang
cau2:5/4cua 2012 bang
cau3:3/4 cua 192 bang
cau4:hieu hai so bang 246 so be bang 3/5 so lon vay so lon la
cau5:tong hai so bang 222 biet rang neu cung them moi so 9 don vi thi so lon gap doi so be tim so lon
cau6:cho hinh chu nhat co chu vi bang 104cm biet neu giam chieu dai di 2cm va tang chieu rong len 2cm thi no cho thanh hinh vuong so do chieu dai hinh chu nhat la
cau7:tong 2 so bang 260 biet neu cung bot moi so di 6 don vi thi so lon gap 3 lan so be vay so be la
Biet hieu cua hai so bang 60% so be, tong hai so bang 266,5
Vay so lon la....