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c a and b

Ong : 84 tuoi

Bo : 48 tuoi

Vay Tuan : 12 tuoi

*** Nha !

năm nay chàng khôi ngô Tuấn tú được ......1+1+1+2+2+2+1+(3-2) tuổi

tuấn năm nay 12 tuổi

Gọi số tuổi của ông là ab , thì số tuổi của bố là ba , tuổi của cháu là a+b (đk a,b <10 . a >b . a khác 0 ) 

suy ra : ab+ba+a+b =12.(a+b)=144

suy ra a+b=12

vì b là chẵn nên a là chẵn . ta có : (a;b)=(4;8) 

vậy tuổi bố là 48 , ông là 84 , cháu là 12 

( tích cho mk ha )

Vào câu hỏi Hải Hoàng - Học toán với Online Math

gọi tuổi ông là ab thì tuổi bố là ba và tuổi Tuấn là b + a

ta có : ab + ba + b + a = 144

a * 10 + b + b * 10 + a + b + a = 144

a * 12 + b * 12 = 144

( a + b ) * 12 = 144

a + b = 144 : 12 = 12

vậy tuổi Tuấn là 12 tuổi

Ông 84 tuổi 

Bố 48 tuổi 

Tuấn 12 tuổi 

gọi tuổi ông là ab thì tuổi bố la ba, tuổi cháu là b+a

Suy ra ab + ba + a + b = 144

Suy ra 10 * a + b + 10 * b + a + a + b= 144

Suy ra 12 * a + 12 * b= 144

Suy ra A = b = 12

Vậy tuổi tuấn là 12

Tuổi Tuấn là : 12

I called him ten tuoi.Chau Hung this Anh.Nam 5c grade at the elementary school in a town office grandchildren dien.Hang forward to every December to tell him about the good work she has done over the past year, divided told him about the dream of her life as well as about the first Christmas gift sinh.Tu school year until now, I've gained a lot of points tot.Chau flowers will try to do well, as a child good children always listen to grandparents, parents. Only a few days to go until Christmas and then, I hope I will get a lego toys because I d puzzles and creator of many models embroidery stitch dep.Chau learned from grades 4 and has unfortunately for him self a very nice and warm scarf scarf ap.Ong remember this then, if he is sick, many children will not have gifts mat.Ong wise Oh, I love him very much. I wish my dream will come true sir!

His obedient children

cho mik nha!!!

dịch sai rồi

Dear Santa Claus

Her name is Hung Anh. She is ten years old. She is in grade 5c at the primary school in a literary town. Every year she looks forward to December to tell him about the good things she did in the past year. Tell him about your dreams in life as well as about the Christmas gift. From the beginning of school to now, he has achieved a lot of good points. He will try to learn well, is a child. Young children always listen to grandparents, parents. Only a few days left to Christmas, I would to receive a lego toy because I to shape and create many beautiful models. She has been learning embroidery from grade 4 and has Dressed him in a very nice and warm towel. He should have missed this scarf, if he was sick, many good children would not have lost. He loved me very much. I wish your dream would become a reality!

Your good boy

Nguyen Huu Hung Anh

ngáo v

chỗ 150 là đơn vị gì vậy

bọn cùi

His beloved Santa Claus

His grandchildren called heroes. I ten years old this year. I studyng at 5c primary school a typical town office. I just looking forward to December to tell you about the good work i have done over the past year, shared with you the dream of life as a Christmas gift. From the beginning of the school year to now, i have gained a lot of good flowers. I will try to do well, is a good kid always hear grandparents, parents. Only a few days to go until Christmas and then, i will look forward to receiving the logo toys because i love puzzle and create beautiful patterns. I learned embroidery from grades 4 ang sew you a scarf, if you are sick, then there will not be many good children gifts away. Mr. Santa, i love you very much. Grandchildren with my dream will come true sir!

Your obedient children

Nguyen Huu Hung Anh

bài này bạn tự lám hả? lời văn rất dễ thương đó!

k rảnh

His beloved Claus

I called him ten tuoi.Chau Hung this Anh.Nam 5c grade at the elementary school in a town office grandchildren dien.Hang forward to every December to tell him about the good work she has done over the past year, divided told him about the dream of her life as well as about the first Christmas gift sinh.Tu school year until now, I've gained a lot of points tot.Chau flowers will try to do well, as a child good children always listen to grandparents, parents. Only a few days to go until Christmas and then, I hope I will get a lego toys because I d puzzles and creator of many models embroidery stitch dep.Chau learned from grades 4 and has unfortunately for him self a very nice and warm scarf scarf ap.Ong remember this then, if he is sick, many children will not have gifts mat.Ong wise Oh, I love him very much. I wish my dream will come true sir!

His obedient children

Nguyen Huu Hung Anh

a) 15 năm 

b)5 năm

c)ko

a, 15 năm

b, 5 năm

c, không

a) Hieu so tuoi 2 ong chau ko thay doi theo thoi gian va =60-10=50 (tuoi)

den khi ong gap 3 lan tuoi chau thi ti la 3/1

hieu so phan bang nhau la : 3-1=2 (phan)

tuoi ong luc do la : 50/2.3=75 tuoi

so nam la : 75-60=15 nam

Vay cau a =15 nam

b) Hieu so tuoi 2 ong chau ko thay doi theo thoi gian va =60-10=50 (tuoi)

 Khi ong gap 11 lan tuoi chau thi ti la 11/1

hieu so phan bang nhau la : 11-1=10 (phan)

tuoi ong luc do la : 60/10.11=66 (tuoi)

so nam la : 66-60=6(nam)

Vay cau b bang 6 nam

c)Hieu so tuoi 2 ong chau ko thay doi theo thoi gian va =60-10=50 (tuoi)

 Khi ong gap 4 lan tuoi chau thi ti la 4/1

hieu so phan bang nhau la : 4-1=3 (phan)

Tuoi ong luc do la : 50/3.4=66.66666666666664(vo ly)

Vay ko co luc nao tuoi ong gap 4 lan tuoi chau

Moi Tay Qua k Cho tui Di

Gọi số tuổi của ông là ab , tuổi của bố là ba , tuổi của Tuấn là a+b ((a,b<10, a>b,a khác 0)

\(=>ab+ba+a+b=12.\left(a+b\right)=144\)

\(=>a+b=12\)

Vì b là chẵn lên a cũng là chẵn . Ta có: (a,b) = (4,8)

Vậy tuổi bố là 48 , tuổi ông là 84 , tuổi cháu là 12

Hok tốt ^^

12

Gọi số tuổi của ông là $ab$, số tuổi của bố là $3$, tuổi Tuấn là $b$ $+$ $a$

Suy ra $ab$ $+$ $ba$ $+$ $a$ $+$ $b$ $+$ $144$

Suy ra $10$ $\times$ $a$ $+$ $b$ $+$ $10$ $\times$ $b$ $+$ $a$ $+$ $a$ $+$ $b$ $=$ $144$

Suy ra $12$ $\times$ $a$ $+$ $12$ $\times$ $b$ $=$ $144$

Suy ra $a$ $=$ $12$

Vậy Tuấn năm nay $12$ tuổi

_NO COPY_