Ballpoint pens cost $1.50 a dozen for the first 200 dozen a store buys from a wholesaler and $1.25 a dozen for those bought in addition to the first 200 dozen. If the store buys 250 dozen pens from the wholesaler, then what is the average cost of ballpoint pens per dozen,
[(200 * $1.50) + (50 * $1.25)] / 250 = ?
To find the average cost of ballpoint pens per dozen, we need to calculate the total cost and then divide it by the total number of dozen pens.
The first 200 dozen pens cost $1.50 per dozen. So, the cost of the first 200 dozen pens is 200 x $1.50 = $300.
For the remaining 50 dozen pens (250 dozen - 200 dozen), the cost is $1.25 per dozen. So, the cost of the remaining pens is 50 x $1.25 = $62.50.
The total cost of all the pens is $300 + $62.50 = $362.50.
We also need to find the total number of dozen pens, which is 250 dozen.
Finally, we can calculate the average cost per dozen: $362.50 / 250 dozen = $1.45 per dozen.
Therefore, the average cost of ballpoint pens per dozen is $1.45.
To find the average cost of ballpoint pens per dozen, we need to calculate the total cost and then divide it by the total number of dozens.
First, let's calculate the cost of the first 200 dozen pens. The cost per dozen for the first 200 dozen is $1.50. So, the cost of the first 200 dozen pens is:
$1.50/dozen * 200 dozen = $300
Next, let's calculate the cost of the additional 50 dozen pens (250 dozen - 200 dozen). The cost per dozen for the additional pens is $1.25. So, the cost of the additional 50 dozen pens is:
$1.25/dozen * 50 dozen = $62.50
Now, let's calculate the total cost of all 250 dozen pens:
Total cost = cost of the first 200 dozen + cost of the additional 50 dozen
Total cost = $300 + $62.50
Total cost = $362.50
Finally, we can find the average cost per dozen by dividing the total cost by the total number of dozen:
Average cost per dozen = total cost / total number of dozen
Average cost per dozen = $362.50 / 250 dozen
Using a calculator, the average cost per dozen is $1.45.
Therefore, the average cost of ballpoint pens per dozen is $1.45.