Answer: Space was alloted for each subject is 8 dm, 8 dm, 12 dm.
Explanation:
Since we have given the length of bulletin board =28 dm
Let the share of three subject areas be 2x,2x,3x
According to question,
[tex]2x+2x+3x=28\\7x=28\\x=\frac{28}{7}\\x=4dm[/tex]
so x=4 dm
Now,
Space was alloted for each subject is given as below:
First subject =[tex]2x=2\times 4=8 dm[/tex]
Second subject =[tex]2x=2\times 4=8 dm[/tex]
Third subject =[tex]3x=3\times 4=12 dm[/tex]
