Question

which of the following is the answer for the problem with the correct number of significant digits? 23.91×12.861 = 307.50651 308 307.51 307 307.5

Explanation:

Step1: Determine significant digits in factors

23.91 has 4 significant digits, 12.861 has 5 significant digits. For multiplication, the result should have the same number of significant digits as the factor with the least significant digits. So the result should have 4 significant digits.

Step2: Round the result

The calculated result is 307.50651. Rounding it to 4 significant digits gives 307.5.

Answer:

307.5