Ncert Exercises & Solutions

The numbers \(2.745\) and \(2.735\) on rounding off to \(3\) significant figures will give respectively,

1.	\(2.75\) and \(2.74\)	2.	\(2.74\) and \(2.73\)
3.	\(2.75\) and \(2.73\)	4.	\(2.74\) and \(2.74\)

Hint: Use the concept of rounding off the numbers.

Step: Round off the two numbers.

For 2.745
The third significant figure is 5, so we round up the second decimal place
Therefore, 2.745 rounded to 3 significant figures is 2.74
For 2.735
The third significant figure is 5, so if we round up the second decimal place
Therefore, 2.735 rounded to 3 significant figures is 2.74
Hence, option (4) is the correct answer.

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