Talk:Measurement precision/@comment-25501845-20141005154614/@comment-25143095-20141005160455

Balu.ur, slow down with these questions. Look for words like "about". Most math is exact. These exercises have you looking for what is reasonable. In the case of this example provided above .... each individual burns calories at different rates - so it is not logical to think that you can determine the amount of time down to the minute level exactly.