Answer:
Bob must use $4,000 newspaper ads in two numbers
Explanation:
As given in the question -
Total number of people affected by $5,000 TV ad [tex]= 250[/tex]
Total number of people affected by two $5,000 TV ad [tex]= 2* 250 = 500[/tex]
Total number of people affected by $5,000 TV ad [tex]= 280[/tex]
Total number of people affected by two $5,000 TV ad [tex]= 2* 280 = 560[/tex]
Hence, more number of people are affected by two news paper adds of $4,000