Respuesta :
1+2+9=12
120/12=10
each unit is 10
10*1=10
10*2=20
10*9=90
120 divided into 1:2:9 is 10,20,90
120/12=10
each unit is 10
10*1=10
10*2=20
10*9=90
120 divided into 1:2:9 is 10,20,90
Answer: The divided parts are 10, 20 and 90.
Step-by-step explanation: We are given to divide 120 in the ratio 1 : 2 : 9.
Let the required parts be 1x, 2x and 9x.
Then, according to the given information, we have
[tex]1x+2x+9x=120\\\\\Rightarrow 12x=120\\\\\Rightarrow x=\dfrac{120}{12}\\\\\Rightarrow x=10.[/tex]
Therefore, we get
First part = 1 × 10 = 10,
second part = 2 × 10 = 20
and
third part = 9 × 10 = 90.
Thus, the divided parts are 10, 20 and 90.
