Question

tổng 2 số = 71,9 .nếu tăng số thứ nhất thêm 20% & số thứ 2 tăng thêm 30% thì tổng sẽ = 88,62. tìm  2 số đó

Answer 1

Nếu số thứ nhất tăng 20% và số thứ hai cũng tăng 20% thì tổng sẽ tăng 20%.

 

Khi đó tổng là : 71,9 x (100%+20%) = 86,28

 

Số phần trăm còn lại của số thứ 2 là : 30% - 20% = 10%

 

10% số thứ 2 tương ứng : 88,62 - 86,28 = 2,34

 

Vậy số thứ hai là : 2,34 : 10 x 100 = 23,4

 

Số thứ nhất là : 71,9 - 23,4 = 48,5

Answer 2

Sai chỗ nào zậy ??? Đúng hết mà .

Answer 3

số1:48,5;số2:23,4

Answer 4

ST1:48,5

ST2:23,4

Mình chắc chắn đó.

Answer 5

ST1 : 48,5

ST2 : 23,4

Tớ đảm bảo 10000000000% luôn

Answer 6

23,4

48,5 chuan xac 10000000000000000000%

Answer 7

Chuẩn Không Cần Chỉnh

Answer 8

23,4

48,5

Minh thi dung sai goi minh(Neu bam sai ko phai loi minh dau)

Answer 9

sai lam sao duoc , dung 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 10

chuan 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 11

st1 la 48,5 

st2 la 23,4

Answer 12

dung that ha nhung toi can cach lam khacco lam on giup toi nhe

Answer 13

Đúng rồi chuẩn 100%

Answer 14

chuan 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 15

thank you

Answer 16

48.5 va 23.4

Answer 17

chuẩn 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 18

48,5 dó thăng nao ko tin thi sai cho may nho day

Answer 19

100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Answer 20

số thứ 1 là 48,5 ;số thứ 2 là 23,4

Answer 21

Tổng của hai số là 62,2. Nếu tăng số thứ nhất thêm 10% , số thứ hai thêm 35% thì tổng mới là 76,77.

Nếu cả hai số đều tăng 10% thì tổng cũng tăng 10%.

Khi đó tổng mới là:

        62,2 x (100 + 10) : 100 = 68,42

Hiệu giữa hai tổng là:

        76,77 - 68,42 = 8,35

Số này tương ứng với số phần trăm số thứ hai là:

       35 - 10 = 25%

Vậy số thứ hai là:

       8,35 : 25 x 100 = 33,4

Số thứ nhất là:

       62,2 - 33,4 = 28,8

                                 Đáp số : 28,8 và 33,4