Question

0.009046879855, round off the number to three significant figures

(a) 0.0905

(b) 0.0904

(c) 0.09046

(d) 0.09035

This question was posed to me by my college director while I was bunking the class.

Enquiry is from Signifiant Figures in chapter Introductory Concepts of Chemical Process Calculation

Answer 1

The correct answer is (a) 0.0905

To elaborate: In such situation we round up the last digit from 4 up to 5.