verity the reasoning if others

Question

Jamie had 4/5 of a spool of twine. He then used 1/2 of a spool of twine to make knots. He claims to have 3/10 of the original spool of twine left over. Explain how you know whether jamues clain

 Is reasonable

Answer 1

1. We are assuming that Jamie used 1/2 of what was left of of the first spool and there was no other spool;

 

4/5 * 1/2 = 4/10, or 2/5 is what was left

 

2. If indeed another spool existed;

 

then what would be left is 4/5 + 1/2 = 1 + 3/10

 

So in either case Jamie's claim would be incorrect/unreasonable.