Susan is doing a practice run of the 60 meter dash for her track and field team. Her trainer looks at his watch and says her time is 8 seconds. Susan insists he use her watch instead. Why would she do this?

Question

akashdeepdeb · Answer

Because there is a possibility that the trainer's watch may show some ERRORS!
And it is always a better option to take multiple readings or observations to get rid of ERRORS!
Getting it? :)

shane_b · Answer

@AkashdeepDeb: The question is asking why she would choose her watch INSTEAD of his.

Most likely it's because she knows that her watch is more accurate than his.

akashdeepdeb · Answer

to take multiple readings and then take the average to get rid of any error. :)

anonymous · Answer

what how does that answer what i need answer.......?????

shane_b · Answer

Your question could have multiple answers but I've seen this one used before.  This question is intended for you to think about precision and accuracy.  

Now...re-read the last line of my first post and you'll have your answer.