Two brothers, Kevin and Charles, each inherit $49000. Kevin invests his inheritance in a savings account with an annual return of 1.9%, while Charles invests his inheritance in a CD paying 5.6% annually. How much more money than Kevin does Charles have after 1 year?

Respuesta :

Answer:

$ 1813

Step-by-step explanation:

Given,

Investment of Kevin, [tex]P_1[/tex] = $ 49000,

Rate of interest = 1.9 % annually,

Thus, his interest, [tex]I_1[/tex] = 1.9% of 49000

[tex]=\frac{1.9\times 49000}{100}[/tex]

[tex]=\frac{93100}{100}[/tex]

[tex]=\$ 931[/tex]

Hence, Kelvin's amount after 1 year,

[tex]A_1=P_1+I_1=49000+931=\$ 49931[/tex]

Now, Investment of Charles, [tex]P_2[/tex] = $ 49000,

Rate of interest = 5.6 % annually,

Thus, his interest, [tex]I_2[/tex] = 5.6% of 49000

[tex]=\frac{5.6\times 49000 }{100}[/tex]

[tex]=\frac{274400}{100}[/tex]

[tex]=\$ 2744[/tex]

Hence, Kelvin's amount after 1 year,

[tex]A_2=P_2+I_1=49000+2744=\$ 51744[/tex]

[tex]\because A_2-A_1=51744-49931 = \$ 1813[/tex]

Therefore, after 1 year Kevin has $1813 more than Charles.