Tổng là:109x2=218
Số đó là:(218+34):2=126.Ủng hộ nha!
Tổng là:109x2=218
Số đó là:(218+34):2=126.Ủng hộ nha!
So trung binh cong cua hai so la 34 . Biet so lon hon so be 8 don vi . Tim hai so do .
trung binh cong 2 so la 103 tim hai so do biet so lon hon so be 28 don vi
Trung binh cong cua 2 so la 28,biet mot trong 2 so do la 30. Tim so con lai ?
trung binh cong cua ba so la 97 tim mot trong ba so do biet no la trung binh cong cua so con lai
biet trung binh cong cua hai so la 185 va biet so lon hon so be 24 don vi tim hai so do
TIM MOT SO CO 3 CHU SO IET TRUNG BINH CONG 3 CHU SO CUA SO DO LA 6 BIET CHU SO HANG TRAM GAP 3 CHU SO HANG CHUC CHU SO HANG CHUC HON CHU SO HANG DON VI LA 3
Trung binh cong cua n so la 80,biet mot trong cac so do la 100.Neu bo so 100 thi trung binh cong cac so con lai la 78. Tim n ?
tim mot so tu nhien biet neu viet them mot chu so 0 vao tan cung ben phai so do ta duoc so moi hon so phai tim 2574 don vi . so do la
Thung binh cong cua 2 so la 15. Biet so lon hon so be 8 don vi. Tim 2 so do.