If someone could help me solve this with clear steps to understand, it would be much appreciated. Thanks!

price-weighted index - sum of stock prices in the index number of stocks in index adjusted for split Example Consider an index including three tech stocks. On day 1, the prices of Google, Apple and Snapchat are $1, $2 and $3. On day 2, those prices become $2, $1 and $5. The Apple stock splits 2-for-1, effective after day 2 (1) What is the new denominator for the index after the stock split? (2) Compute the return of the index over the one-day period