nominal exchange rate=5,domestic price level=20,real exchange rate=7.5.What's foreign price level

问题描述:

nominal exchange rate=5,domestic price level=20,real exchange rate=7.5.What's foreign price level
If nominalexchange rate is 5,domestic price level is 20 and real exchange rate is 7.5.What is the foreign price level?
a.40 b.35 c.30 d.25

这句话的意思是
如果兑换虚价率是5,国内价格水平是20和实际汇率是7.5.外国价格水平是什么?
应为20×7.5/5=30