State the rules for finding the significant figures in the multiplication and division of two numbers, with example.

State the rules for finding the significant figures in the multiplicat

1.	State the rules for finding the significant figures in the multiplication and division of two numbers, with example.
Answer» Solution :Multiplication and Division : The final result should retain as many SIGNIFICANT figures as there are in the original number with smallest number of significant figures. In multiplication or division. Eg: (i) `1.21xx36.72=44.4312=44.4` Here the least number of significant digits in the MEASURED values is three. HENCE the result when rounded off of three significant digits is 44.4 (ii) `36.72 div 1.2 =30.6 =31` Here the least number of significant digits in the measured values is two. Hence the result when rounded off to significant digit BECOMES 31.