Usually three. However it is possible to change the default so that a different amount show when it is opened.
In Microsoft Excel, a new workbook will normally have three worksheets.
Three blank worksheets.
A collection of many worksheets together are a workbook.
You can hide all the worksheets in the workbook. A workbook can have as many worksheets as your computer's memory will allow, so there is no set maximum.
Workbook
There will always be a default, and if it is not changed, then there will be 3 worksheets in a new workbook.
No. A workbook can contain many worksheets.
A collection of many worksheets together are a workbook.
As many as the memory in your computer can store. The number of worksheets in each workbook is limited only by the amount of memory available.
Maybe. You can have as many worksheets in a workbook as the memory of your computer will allow. I know that's not a definitive answer, but sometimes, "it depends" is the best you will get.
3
Although you're limited to 255 sheets in a new workbook, Excel doesn't limit how many worksheets you can add after you've created a workbook. The only factor that ultimately limits the number of worksheets your workbook can hold is your computer's memory.