Respuesta :

Answer:

300 : 900

Step-by-step explanation:

sum the parts of the ratio , 1 + 3 = 4 parts

Divide the amount by 4 to find the value of one part of the ratio

1200 ÷ 4 = 300 ← value of 1 part of the ratio , then

3 parts = 3 × 300 = 900

1200 in the ratio 1 : 3 is 300 : 900

neharikagupta2020

Step-by-step explanation:

the formula of dividing according to ratio is:

Ratio/sum of the ratio the sum which to be divided

1+3 =4

ratio 1 : 1 /4 1200

=1200/4

=300

ratio 3 : 3/4 1200

=3600/4

=900

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