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Q.
According to significant figure convention, the result obtained by adding $12.11,18.0$ and $1.012$ is
TS EAMCET 2015
Solution:
According to significant figure convention, during adding, the number of decimal places in the answer should not exceed the number of decimal places in either the numbers.
$12.11 $
$18.0 $
$11.012 $
______
$ 31.122$
_______
$18.0$ has only one digit after the decimal point, thus the result should be reported only upto one digit after the decimal point which is $31.1$.