Large Ltd owns $60\%$ of ordinary shares of Medium Ltd$.$ Large Ltd and Medium Ltd hold $40\%$ and $25\%$ of ordinary shares of Small Ltd$,$ respectively. $30\%$ and $25\%$ ordinary shares of Tiny Ltd are held by Small Ltd and Large Ltd$,$ respectively.

Required:

a$)$ Draw a family tree to illustrate the relationship among them. $(3$ marks$)$

b$)$ Discuss the classification of Small Ltd from the viewpoint of Medium Ltd and Large Ltd$.($i$.$e$.,$ whether it is a subsidiary or associate$)(3$ marks$)$

c$)$ Discuss the classification of Tiny Ltd from the viewpoint of Large Ltd$.($i$.$e$.,$ whether it is a subsidiary or associate$)(2$ marks$)$

d$)$ Further to part c$),$ calculate the effective ownership of Tiny Ltd attributable to Lage Ltd and non$-$controlling interest. $(4$ marks$)$