Answer :
Final answer:
The number of significant figures in 20000 pens is 5, as significant figures help to improve the accuracy and precision of numerical data. When it comes to counting exact objects like pens, all the digits are significant in their entirety.
Explanation:
The question wants to identify the number of significant figures in 20000 pens. The term 'significant figures' is a concept in mathematics that is used to refine the accuracy and precision of numerical data. When it comes to counting physical objects or integers where the number is exact as in this case, counting 20000 pens, all digits are considered significant.
Therefore, in the number 20000, we have five significant figures. Every non-zero digit in the number is counted as a substantial figure. However, the question specifies pens, so this could imply that we are counting individual objects, and the entire number would be significant as it is an exact count. So, the number of significant figures in 20000 pens is (2) 5.
Learn more about Significant Figures here:
https://brainly.com/question/33741100
#SPJ11
