A charity had a fundraiser. After selling 200 tickets, they made a profit of $12,000. They had to sell a few more tickets to cover necessary cost of $1,200. Complete the equation.

20 tickets.

Step-by-step explanation:

Given:

After selling 200 tickets, they made a profit of $12,000.

Question asked:

How many more tickets it must be sold by charity to cover the cost of $1,200 ?

Solution:

First of all we will calculate profit earned by selling 1 ticket.

By unitary method:

After selling 200 tickets, they made a profit = $12,000.

After selling 1 ticket, they made a profit =

Now, we have to find number of more tickets must be sold to cover to cost of $1200.

It is clear that cost must be cover by earning profits, so to earn $1200 as profit we have to sell number of tickets:-

By unitary method:

Amount of profit must be earned divided by profit earned from each ticket,

Therefore, they had to sell 20 more tickets to cover necessary cost of $1,200.

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step-by-step explanation:

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