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Statement I
After rounding off to 2 significant figures 6.63725 can be expressed as 6.6
Statement II
If the first digit to be discarded is less than 5, the digit to the left of it remains unchanged

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Both statements I and II are correct

Both statements I and II are incorrect

Statement I is correct and statement II is incorrect

Statement I is incorrect and statement II is correct

answer is A.

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Detailed Solution

Rules for rounding off numbers

1.if the first digit to be discarded is less than 5 the digit to the left of it remains unchanged

2.if the first digit to be discarded is greater than 5 then the digit preceding it is increased by 1.

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