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What is the number 75.66852 rounded off to 5 significant digits?

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What is the number 75.66852 rounded off to 5 significant digits?

(a) 75.67

(b) 75.669

(c) 75.668

(d) 75.667

This question was posed to me during an interview for a job.

This question is from Significant Figures topic in portion Units and Measurements of Physics – Class 11

1 Answer

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Best answer
Right option is (b) 75.669

To elaborate: The answer is 75.669. 52 rounds of to 5 and hence 852 rounds of to 850 which in turn rounds of to 900. Hence the final answer becomes 75.669.

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