True/False
It takes Barbara three hours to make a pie and four hours to make a shirt. It takes Gary two hours to make a pie and five hours to make a shirt. Barbara should specialise in making pies and Gary should specialise in making shirts. Then they should trade.
Correct Answer:

Verified
Correct Answer:
Verified
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Q50: Table 3-2<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3776/.jpg" alt="Table 3-2
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Q134: Graph 3-2 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8859/.jpg" alt="Graph 3-2