Respuesta :

✿  [tex]\mathsf{Simple\;Interest = (\frac{Principal \times Rate\;of\;Interest \times Time\;period}{100})}[/tex]

Given : Principal = $820

Given : Rate of Interest = 4%

Given : Time period = 3 yrs

[tex]\mathsf{\implies Simple\;Interest = \frac{(820)(4)(3)}{100}}[/tex]

[tex]\mathsf{\implies Simple\;Interest = (8.2)(12)}[/tex]

[tex]\mathsf{\implies Simple\;Interest = 98.40}[/tex]

Option (C) is the Answer