Q. The correctly reported answer of the addition of 4.523, 2.3 and 6.24 will have significant figures
A) Two
B) Three
C) Four
D) Five
Explanation
(b)
$4.523 + 2.3 + 6.24 = 13.063.$ As 2.3 has least number of decimal places $i.e$., one, therefore sum should be reported to one decimal place only. After rounding off, reported sum=13.1 which has three significant figures.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.