Saved Bookmarks
| 1. |
Round off to 3 significant figure. 20.96 |
|
Answer» Solution :(i) 20.96 has FOUR significant FIGURES. The fourth significant figure is more than 5 and hence on rounding off to three significant figures, the GIVEN measurement will become 20.9 +0.1 i.e., 21.0. (ii) 0.0003125 has four significant figures. The fourth Significant figure is 5 and hence on rounding off to three Significant figures, the given measurement will become`0.000312` or `3.12xx10^(4)` . This is because 2 before 5 is an EVEN number . |
|