Final answer:
To measure out 45 minutes using two pieces of twine and a lighter, you can light one end of one twine, and when it burns out, light the other end.
Step-by-step explanation:
To measure out 45 minutes using two pieces of twine and a lighter, you can use option c: light one end of one twine and when it burns out, light the other end. Here's how you can do it:
- Take one piece of twine and light one end of it.
- Allow the twine to burn until it reaches halfway.
- Once the first end is burned out, then light the other end of the twine.
- Now, the second half of the twine will take the same amount of time to burn as the first half, resulting in a total of 45 minutes.