gọi a là số lớn, vậy số bé là 290-a.

nên ta sẽ có: a+10= 125%.(290-15-a)

                    a+10= 343,75- 5/4.a

                    a+5/4.a=343,75

                    9/4.a= 343,75

                    a=1375/9

            vậy số bé= 290-1375/9=1235/9

Hoạt động rảnh rỗi thời gian

Gt tên…….

I will tell you about my leisure activity.There are many leisure activity but I like playing badminton best in my free time,I spend about thirdteen minutes playing badminton.Its very interesting and relaxing.

Throught badminton can help me healthy and it make me taller.After playing badminton Iam full of energy and happy with friend,my family.Sometimes, when I play too much will make me fall down and hurt.It become part of my every day life.I love it so much and I will make become athletes.Beside I also like reading books and watching tv Thank you for listening and goodbye teacher

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