Question

Choose the correct Option (according to concept of significant figures)

2 marks

A) 3.00+2.5=5.50

B)3.00 - 2.5 = 0.5

C)3.00 - 2.5 =0.50

D)all three are correct

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Answer 1

Answer:

Rule: The result of an addition or subtraction is reported to the same number of decimal places as present in number with the least decimal places.

Since the least precise number is 5.041 and that has three digits after the decimal, therefore the result of the above addition is rounded off to three decimal figures as 8.063