principal 1 = $200
pricipal 2 = $ 150
r = 3%
I = ?
T = 1 (we assume the time is 1)
[tex]\begin{gathered} I\text{ = }\frac{PRT}{100}\text{ } \\ I\text{ = }\frac{200\text{ }\times\text{ 3}\times\text{ 1}}{100} \\ I\text{ = }\frac{300}{100} \\ I\text{ = \$}6 \\ \\ When\text{ p = \$150} \\ I\text{ =}\frac{PRT}{100} \\ I\text{ = }\frac{150\times3\times1}{100} \\ \\ I\text{ =\$4.5} \\ \end{gathered}[/tex]The Difference is $6 - $4.5 = $1.5
