Para-jumble (foreign exchange basics): Reorder the sentences to define exchange rates, illustrate with major currencies, and show variability with a Mexico example.
S1 = "Payment for imports and exports is made through a system called foreign exchange."
S6 = "Another time it may be worth eight pesos."
Between S1 and S6, arrange definition → illustration → variability:
P = "The value of the money of one country in relation to the money of other countries is agreed upon."
Q = "These rates of exchange vary from time to time."
R = "For instance, an American dollar or a British pound sterling is worth certain amounts in the money of other countries."
S = "Sometimes a United States dollar is worth 12 pesos in Mexico."
Choose the correct sequence of P–Q–R–S that completes the paragraph.
Difficulty: Easy
Correct Answer: PRQS
Explanation:
Given data
P defines an exchange rate.
R illustrates with USD/GBP values in other monies.
Q emphasizes that the rate changes over time.
S gives a concrete Mexico example (12 pesos), with S6 giving another value (8 pesos).
Concept / Approach Definition → generic example → principle of variability → specific example → alternative value (S6). This keeps the didactic flow tight.
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