What is the difference between CI and SI for two years on sum of Rs.4800 at 15% per annum:

108

15% = \(\frac{3}{20}\)

⇒ \(\frac{Diff.}{Principal}\) = \(\frac{3^2}{20^2}\) = \(\frac{9}{400}\)

⇒ 400R = 4800

⇒ 1R = 12

⇒ Difference = 9R = 9 × 12 = 108

OR

CI - SI = P (\(\frac{R}{100}\))²

          = 4800 × \(\frac{15}{100}\) × \(\frac{15}{100}\)

          = 108