A(1 - 37.5/100) = B => A = 1,6 B =B + 60/100 *B =>B tăng lên 60%
A(1 - 37.5/100) = B => A = 1,6 B =B + 60/100 *B =>B tăng lên 60%
Giam so A di 37,5% cua no ta duoc B .hoi phai tang B them bao nhieu phan tram cua no ta lai duoc A
Ai lam nhanh, dung, co loi giai, mk t cho
neu tang so A them 60% cua no thi ta duoc so B . Hoi phai giam so B di bao nhieu phan tram cua no de duoc so A ?
neu giam so C di 37,5 % cua no thi ta duoc so D hoi phai tang so D them bao nhieu phan tram cua no thi duoc so C ?
Tang so A them 25% cua no thi ta duoc so B.Hoi phai giam so B di bao nhieu phan tram cua no de ta duoc so A.
giam so A di 20% thi duoc so B . hoi phai giam so B di bao nhieu phan tram cua no de ta duoc so moi bang 20% so A ?
Neu giam so M di 20 % cua no ta duoc so N . Hoi pai tang so N them bao nhieu phan tram nua cua no de duoc so M ?
giam so A di 20% thi duoc so B . hoi phai giam so B di bao nhieu phan tram cua no de ta duoc so moi bang 20% so A ?
GIAI CO LIKE NHA AI GIAI DAY U DE HIEU DUNG MINH LIKE CHO
MINH NGOC LAM NEN GIAI DE HIEU NHA
1.32% cua mot so la 6,4
2.Tim mot so tu nhien biet,neu xoa chu so 0 tan cung cua no di ta duoc so moi kem so phai tim 2214 don vi?
3.Mot nguoi mang mot so cam di ban.Buoi sang ban 60% so cam mang di.Buoi chieu ban 39 qua nua.Luc ve thi thay so cam con lai bang so cam ban duoc.Hoi nguoi do da mang di bao nhieu qua cam?
4.Mot kho gao sau khi xuat di 20% so gao trong kho thi phai nhap vao mot luong gao bang bao nhieu phan tram so gao hien co trong kho de lai duoc so gao nhu luc ban dau
5.Tich cua 2 so la 5037.Giam mot trong hai so do di 7 don vi thi tich giam di 483.Tim so truoc khi giam di 7 don vi
Cac ban co gang doc de bai ko dau vi may nha minh ko viet duoc dau
lam dung minh tick
mot so neu duoc tang le 25% thi duoc so moi . hoi phai giam so moi di bao nhieu phan tram de lai duoc so ban dau