1.

Add 18.11, 12.0 and 2.021 and report the result in significant figures.

Answer»

SOLUTION :18.11+12.0+2.021 = 32.131
Here, 12.0 has ONE digit after the decimal POINT and the result should be REPORTED only up to one digit after decimal point. Hence round off the result to 32.1
NUMBER of significant figures is 3


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