What is the sum of 1.53 + 2.786 + 3.3 expressed to the correct number of significant figures?
A)7
B)7.6
C)7.62
D)7.616
E)7.6160

Question

Quizplus · Accepted Answer

The sum of 1.53 + 2.786 + 3.3 is 7.616. However, the correct number of significant figures is determined by the least precise measurement, which in this case is 3.3 (having only one decimal place). Therefore, the sum should be expressed as 7.6 to match this precision.

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