A restaurant sold 250 drinks in a night. Some of the drinks were sold for $2 each, and the rest for $5 each. If the total sales of drinks for the night was $830, how many $2 drinks were sold

140

Explanation:

Data given in the question

Number of drinks sold = 250

Rate = $2

Rate = $5

Total sales of drinks = $830

Let us assume the $2 drinks be X

And for $5 drinks it is 250 - X

So, the equation is as follows

2X + 5 * (250 - X) = $830

2X + 1,250 - 5X = $830

-3X = - 420

X = 140

Therefore, the $2 drinks were sold for 140