A building contractor buys 525 metal bars. Because he is buying more than 500 bars, the wholesaler gives him a discount of $420. The total price is $3,780. What is the cost of each metal bar?

The cost of each metal bar is $8.

Step-by-step explanation:

We are given the following  in the question:

Total number of bars bought = 525

Discount price = $420

Total price = $3,780

Let x be the unit cost of metal bars.

Thus, we can write the equation:

Solving the equation, we get,

Thus, cost of each metal bar is $8.