Given:
Amount = 60000
Interest rate = 4% per yaer
Find: she have in 9 months.
Sol:.
In 12 month 4% interest rate then amount is:
[tex]\begin{gathered} In\text{ 12 month value =}\frac{104}{100}\times60000 \\ =62400 \end{gathered}[/tex]In 12 month amount is 62400
[tex]\begin{gathered} =62400-60000 \\ =2400 \end{gathered}[/tex]In 12 mounth amount increasses is 2400
so in 9 month:
[tex]\begin{gathered} =\frac{2400}{12}\times9 \\ =1800 \end{gathered}[/tex]After 9 month amount is:
[tex]\begin{gathered} \text{Amount}=60000+1800 \\ =61800 \end{gathered}[/tex]