Question

Trung bình cộng của hai số là 70 .Tỉ số là 2/5 .Tìm  hiệu hai số đó ?

Answer 1

Tổng của 2 số là 70x2=140

Tổng số phần là 2+5=7 ( phần)

Số bé la 140:7x2=40

Số lớn là 140-40=100

Đáp số: Số bé: 40

             Số lớn:100

Answer 2

Trung bình cộng 2 số là 70 => tổng của 2 số là 70 x 2 = 140

Có tổng tỉ tìm 2 số đơn giản

Answer 3

tổng của 2 số là:70x2=140

số lớn là:140:[5+2]x5=100

so be la:140-100=40

hieu 2 so la:100-40=60

Answer 4

số bé 40

số lớn 100

Answer 5

so be la 40 

so lon la 100 ban a !!

                        

Answer 6

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Answer 7

What is this ? I'm going to markets and they is Marry