Question

The number of significant figure in the difference of
15.45 and 14.7 is/are
(1) 1
(2) 2
(3) 3
(4) 4​

Answer 1

Answer:

Your answer cannot be MORE precise than the least precise measurement. The following rule applies for multiplication and division: The LEAST number of significant figures in any number of the problem determines the number of significant figures in the answer

Explanation:

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Answer 2

Answer:

4 and 3 respectively the significant figure of15.45 and 14.7,

The number of significant figure in the difference 15.45 and 14.7,

Since the least precise value is 14.7 which has 3 significant digits so the answer will be rounded such that it also has 3 significant digits. i.e. 0.750