David is building wooden picture frames. Each frame requires 3/4 feet of wood. If david started with 12 feet of wood and now has 6 feet of wood remaining, how many picture frames has he built?
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Given: Each frame requires 3/4 feet of wood.
To find: How many picture frames has he built?
Solution:
- As we have given that frame requires 3/4 feet of wood to complete. So according to the question 6 foot is already used to make the frames.
- Now, the number of frames which are made out of the 6 feet wood which is already used are:
- Let the number of frames made be 'a', so:
3/4 x (a) = 6
a = (6 x 4)/3
a = 8
- So out of 6 feet wood he has completed 8 frames yet, and has to finish 8 more frames out of the remaining 6 feet of the wood.
Answer:
8 picture frames has he built.
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