What is the different between 0.007685 correct to three significant figures and 0.007685 correct to four places of decimal?

  • A 10-5
  • B 7 x 10-4
  • C 8 x 10-5
  • D 10-6
jamb 1989mathematics

The correct answer is A. 10-5

0.007685 correct to three significant figures is 0.00769, while 0.007685 correct to four decimal places is 0.0077. 

The difference between these two numbers is 0.0077 - 0.00769 = 0.00001, which can also be written as 10^(-5). 

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