Table 7-6 Output Per Hour Production and Production

Multiple Choice

Table 7-6
Output per hour Production and Production
of work Consumption without Trade with Trade
Estonia and Morocco can produce both swords and belts.Each country has a total of 40 available labor hours for the production of swords and belts.Table 7-6 shows the output per hour of work,the production and consumption quantities without trade,and the production numbers with trade.
-Refer to Table 7-6.With trade,what is the total gain in belt production?

A) 20
B) 40
C) 60
D) 120