Question

There are $50$ apples trees in an orchard. Each tree produces $800$ apples. For each additional tree planeted in the orchord. The output additional tree drops by $10$ apples tree drops by$10$ apples. Number of trees that should to the existing orchord for maximising the output of the trees is $3k$, then $k=$ ?

Answer 1

The output for x no. of bees is than$=\frac{800-10k}{50+k}$

$0=300k-10k^2+40000$

$300-20n=0$

Hence, $n=15$

Hence, $15$ trees should be added

$3k=15$

$k=5$.