Question

Which of the following statements is/are true in determining the number of significant figures?

I - Zero digits are always insignificant.

II - A final zero or trailing zeroes are significant after a decimal point ONLY.

III - The result of addition or subtraction must possess the same number of significant figures as the quantity that bears the least amount of significant figures.

IV - Any non-zero digit after the decimal point is insignificant.

V - The result of multiplication or division must possess the same number of decimal places as the quantity that bears the least number of figures after the decimal point.