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  • Help me solve this Solve the following equation using correct number of significant figures,30.4 + 20.103 + 16.41 + 10.334 =

Solve the following equation using correct number of significant figures,

30.4 + 20.103 + 16.41 + 10.334 =

  • Option 1)

    77.247

  • Option 2)

    77.25

  • Option 3)

    77.2

  • Option 4)

    77.24

 

Answers (1)

The result cannot have more digits to the right of the decimal point than either of the original numbers. So, solution is 77.2 as we have the number 30.4.

 

Addition and Subtraction of significant figures -

The result cannot have more digits to the right of the decimal point than either of the original numbers.

- wherein

10.111 +20.0+ 30.123 = 60.234

Here, 20.0 has only one digit after the decimal point and the result should be reported only up to one digit after the decimal point which is 60.2.

 

 

 

 

 


Option 1)

77.247

This is incorrect.

Option 2)

77.25

This is incorrect.

Option 3)

77.2

This is correct.

Option 4)

77.24

This is incorrect.

Posted by

subam

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