De moi thi tren Olympic vong 14
chua giai duoc chi cho bao nhieu do thoi
axb=125, (a+3)x(b+2)=c.
a=125/b, (125/b+3)x(b+2)=c.
Phân h so biểu thúc ta có số chia la 5 nên
ta tim duoc h moi la c=( 125:5+3)x(5+2)
c=25x7
c= 175
De moi thi tren Olympic vong 14
chua giai duoc chi cho bao nhieu do thoi
axb=125, (a+3)x(b+2)=c.
a=125/b, (125/b+3)x(b+2)=c.
Phân h so biểu thúc ta có số chia la 5 nên
ta tim duoc h moi la c=( 125:5+3)x(5+2)
c=25x7
c= 175
cho tich 126 nhan x.neu x tang them 3 don vi thi tich moi la bao nhieu ?
cho hai so co hieu bang 912 .hoi neu tang so bi tru them 125 don vi va tang so tru them 140 don vi thi hieu moi se bang bao nhieu
neu giam thua so thu nhat di 6 don vi giu nguyen thua so thu hai thi tich giam di 270 don vi neu tang thua so thu hai them 2 don vi va giu nguyen thua so thu nhat thi tih tang them 16 don vi tim tich 2 so luc dau
cho hai so co hieu bang 912 . hoi neu tang so bi tru them 125 don vi va tang so tru them 140 don vi thi hieu moi se bang bao nhieu ?
Tim hieu cua hai so, biet rang neu so lon tang them 1470 don vi va so be tang them 25830 don vi thi duoc hieu moi la 12340.
tich 2 so la 48 , biet thua so thu nhat = 4 . neu tang thua so thu 2 len 4 don vi thi tich moi bang bao nhieu ?
neu thua so thu nhat tang them 6 don vi giu nguyen thua so thu hai ti tich cua chung la 42 don vi tim tich cua hai so luc dau
Neu tang thua so thu nhat them 3 don vi,giu nguyen thua so thu hai thi tich tang them 21 don vi.Neu tang thua so thu hai them 5 don vi,giu nguyen thua so thu nhat thi tich tang them 240 don vi.Tim tich hai so luc dau?
cho tich 42x5 neu thua so thu hai tang len 3 don vi thi tich tang bao nhieu?