Mr. Russo exchanged 200 euros (European Money) for 270 dollars. How much dollars would he get for 300 euros? A.
370 C.
405
The Correct Answer and Explanation is:
Step 1: Find the exchange rate
Mr. Russo exchanged 200 euros for 270 dollars.
To find the exchange rate (how many dollars for 1 euro), divide the amount in dollars by the amount in euros:Exchange rate=270 dollars200 euros=1.35 dollars per euro\text{Exchange rate} = \frac{270\ \text{dollars}}{200\ \text{euros}} = 1.35\ \text{dollars per euro}Exchange rate=200 euros270 dollars=1.35 dollars per euro
Step 2: Use the exchange rate for 300 euros
Now that we know 1 euro = 1.35 dollars, we multiply 300 euros by 1.35:300 euros×1.35 dollars/euro=405 dollars300\ \text{euros} \times 1.35\ \text{dollars/euro} = 405\ \text{dollars}300 euros×1.35 dollars/euro=405 dollars
✅ Final Answer: C. 405
Explanation
Currency exchange is the process of converting one type of currency into another. In this case, Mr. Russo converted euros (the official currency of many European countries) into US dollars. Understanding the exchange rate—the value of one currency in terms of another—is essential when traveling internationally, conducting business abroad, or analyzing foreign investments.
Mr. Russo received 270 dollars in exchange for 200 euros. To determine how much one euro is worth in dollars, we divide the dollar amount by the euro amount:270÷200=1.35270 \div 200 = 1.35270÷200=1.35
This means 1 euro equals 1.35 dollars. Once we know this rate, we can use it to convert any amount of euros into dollars, assuming the exchange rate stays constant.
To find out how many dollars Mr. Russo would get for 300 euros, we multiply:300×1.35=405300 \times 1.35 = 405300×1.35=405
Therefore, Mr. Russo would receive 405 dollars.
Understanding exchange rates is also important because these rates fluctuate due to economic factors such as inflation, interest rates, and geopolitical stability. In this case, we assumed the exchange rate remains the same. But in real-life situations, rates can vary daily or even hourly.
In conclusion, if 200 euros equals 270 dollars, then by maintaining the same exchange rate, 300 euros would equal 405 dollars. This approach demonstrates a direct proportion, a key concept in currency exchange and everyday problem-solving.
