Hey Shardj16!
The correct way to answer your question would be to:
Let t be the variable for the pound of turkey.
Write down the equation first: 1/3t = 4
Now you must get the 4 to 10, so you multiply it by 2.5!
2.5/3=10
You can make 2.5/3 into a fraction by multiplying the numerator and denominator by 2, turning it into 5/6.
The correct answer to your question would be 5/6 pounds of turkey.
Hope I was able to help! If you need any more help, please let me know.