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September 17, 2014

September 17, 2014

Posted by **b6** on Saturday, October 13, 2012 at 9:27pm.

A) how many yards in all?

B) If thery were all cut into 3 feet pieces how many would you get and how did you determine this answer

C) How much rope is left? How was that determined

- math -
**b6**, Saturday, October 13, 2012 at 10:08pmI di try and answer them on my own and got A) 22 7/36 yards of rope.

B) 22 pieces

C) 7/12 of the rope was left.

Please help, are these correct?

If not can you explain and help me understand the question. Thanks

- math -
**Reiny**, Sunday, October 14, 2012 at 12:26ama) correct

b)

from the 15 1/3 ft piece we can cut 5 pieces of 3 ft, leaving 1/3 ft

from the 20 1/2 ft piece we can cut 6 pieces of 3 ft, leaving 2 1/2 ft

from the 30 3/4 ft piece we can cut 10 pieces of 3 ft leaving 3/4 ft

so we can cut 5+6+10 or 21 pieces of 3 ft each

c) amount left over:

1/3 + 2 1/2 + 3/4

= 3 7/12 ft

- math -
**b6**, Sunday, October 14, 2012 at 8:57amfor partB) since for each part that was left was more than 3 feet as you see in part C won't that be added as one more foot making the answer to B) 22 pieces

and part C) 7/12 left?

- math -
**Reiny**, Sunday, October 14, 2012 at 10:10amI read the question to mean that you want complete 3 ft sections, not pieces that have been tied together to make 3 ft.

from a piece of 20 1/4 ft, I can only get 6 sections of 3 ft, even though a big piece would be left over.

Let's agree it is a poorly worded question.

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