$n_{2} = n_{1}\left( \frac{M_{1}}{M_{2}} \right)^{1}\left( \frac{L_{1}}{L_{2}} \right)^{1}\left( \frac{T}{T_{2}} \right)^{- 2}$ $= \ 100\left( \frac{gm}{kg} \right)^{1}\left( \frac{cm}{m} \right)^{1}\left( \frac{\sec}{\min} \right)^{- 2}$ $= 100\left( \frac{gm}{10^{3}gm} \right)^{1}\left( \frac{cm}{10^{2}cm} \right)^{1}\left( \frac{\sec}{60\ \sec} \right)^{- 2}$ $n_{2} = \ \frac{3600}{10^{3}} = 3.6$