$\backslash$table$[[$stock$,$P$1,$P$2,$P$3],[A^{**},11,3\mathrm{.}5,8],[$B$,12,3,16],[$C$**,5,12,20]]$

Stock A has a split $1$:$2$ at the end of day $1$

Stock $C$ has a stock reverse $2$:$1$ at the ends of day $2$

what is the divisor at day $2$

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what is the value of the index in day $2$

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what is the divisor in day $3$

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what is the return from day $2$ to day $3$

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