Question

34. You measure two quantities as A = (10.0 +0.2)
and B = (20.0 +0.2)m, We should report correct
value for AB as :
(1) (14.1 +0.3)m
(2) (14.10.15)m
(3) (14.1 +0.4)m
(4) (14.1 +0.2)m
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Answer 1

Answer:

(4) is the correct answer