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EconomicsQ&A Library6. Two players on a basketball team share playing time. Mark's expected number of pointsscored is SM(x) = 30x – 5x² if he plays the fraction x e [0,1] of the game. John's expectednumber is S(x) = 25x – 5x points if he plays the fraction x of the game.(i) Suppose that Mark plays the entire game. How many points does he expect to score? Howmany points would John expect to score if he played the fraction x = A of the game? Find theaverage scoring rate, S(A)/A, as A approaches zero.(ii) What fraction of the time should Mark play in order to maximize the total points scored byMark and John? Find the expected number of points scored by each player per unit time.Question

Asked Jan 31, 2020

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Here is my question!

Step 1

**(i)** If Mark plays the entire game, then x = 1. Hence, the expected score is:

If John played the fraction x = Δ, his expected score is:

Step 2

Average scoring rate can be calculated as:

As Δ approaches to 0, putting Δ = 0 in above equation,

Hence, **ASR is 25**.

Step 3

**(ii)** If Mark spends x fraction of time, John would spend (1 – x) fraction of time.

Total score can be calculated as:

For finding optimal score, differentiating using first order condition:

Hence, Mark’s optimum play time is 75% of time.

So, John plays for 25% of time.

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