Question

Tìm ba số tự nhiên a,b,c nhỏ nhất khác 0 sao cho:250a = 300b = 400c.

Answer 1

250a=300b=400c

=> 5a=6b=8c

Đặt 5a=6b=8c=d

và d thuộc N* d chia hết cho 5 6 8

d nhỏ nhất suy ra d=120

Vậy a=24 b=20 c=15

Answer 2

a.24 b. 20 c.15

Answer 3

15 la dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000% day ban

nho h cho mik nghe

Answer 4

a = 24 

b = 20

c = 15

k cho mk nha

Answer 5

BCNN(250,300,400)=6000

=>250a=300b=400c=6000=>a=6000:250=24

                                               b=6000:300=20

                                               c=6000:400=15

Vậy a=24