In calculating 12.34 * 2.36 = 29.1224, how many significant figures are you allowed to retain? 1. 2 2. 3 3. 4 4. 1

Option 2. 3

Step-by-step explanation:

When we multiply the result can only retain as many significant figures as of the number with the least significant figures. You may think it like a chain is as strong as it weakest link.

Notice 12.34 has four significant figures.

Notice 2.36 has three significant figures.

Certainly three is less than fours, therefore when we multiply them we are allowed to retain only 3 significant figures. That is the given option 2.