A babysitter takes care of 20 kids. When taking care of all the kids she gets paid $50 per kid. However, for every $5 more she charges, a kid leaves. How many kids should she babysit to max her profit?
I want to write a code that asks user to enter the charge per kid when taking care of all the kids, the increase in charge that causes a kid to leave, and an output that is the number of kids to babysit to max profit and what the profit would be at that number of kids. I want this done for a vba macro code.
I suggest you give it a try and post any difficulties you encounter.
Programming is not as hard as it seems once you get started.
To write a VBA macro code that determines the number of kids for maximum profit and calculates the profit at that number, you can follow these steps:
1. Open the Visual Basic Editor in Excel by pressing Alt + F11.
2. Insert a new module by clicking on "Insert" and selecting "Module".
3. In the new module, write the following code:
```vba
Sub MaxProfit()
Dim chargePerKid As Double
Dim increaseInCharge As Double
Dim maxKids As Integer
Dim maxProfit As Double
' Prompt the user to enter the charge per kid and increase in charge
chargePerKid = InputBox("Enter the charge per kid (in dollars):")
increaseInCharge = InputBox("Enter the increase in charge (in dollars):")
' Initialize variables
maxKids = 0
maxProfit = 0
' Loop through the number of kids from 1 to 20
For kids = 1 To 20
Dim currentProfit As Double
Dim currentCharge As Double
Dim currentKids As Integer
currentKids = kids
currentCharge = chargePerKid + (increaseInCharge * (20 - kids))
currentProfit = currentKids * currentCharge
' Check if the current profit is higher than the previous maximum profit
If currentProfit > maxProfit Then
maxProfit = currentProfit
maxKids = currentKids
End If
Next kids
' Display the number of kids for maximum profit and the corresponding profit
MsgBox "Number of kids for maximum profit: " & maxKids & vbCrLf & "Maximum Profit: $" & maxProfit
End Sub
```
4. Close the Visual Basic Editor.
5. To run the macro, go to the Excel worksheet, press Alt + F8, select the "MaxProfit" macro, and click on "Run".
When the macro is executed, it will ask the user to enter the charge per kid and the increase in charge. After processing the calculations, it will display a message box with the number of kids to babysit for maximum profit and the corresponding profit.
Please note that this code assumes the maximum number of kids is 20. If the range of possible kids is different, you can adjust it in the `For` statement in the code.