Yesterday I could exchange some amount of Japanese yen I had into 100 US dollars.
Today the Japanese yen of the same amount as yesterday can be exchanged for 1.02 times as many dollars, but I exchanged 12750 yen into 100 US dollars.
Find the amount of money of the Japanese yen which it had yesterday.
Today the Japanese yen of the same amount as yesterday can be exchanged for 1.02 times as many dollars, but I exchanged 12750 yen into 100 US dollars.
Find the amount of money of the Japanese yen which it had yesterday.
Answer
Necessary amount of Japanese yen for exchanging 102 US dollar is 127.5 × 102 = 13005 yen.
And it is the amount I exchanged into 100 US dollar yesterday.
13005 yen
Solution
As for the amount of Japanese yen which can be exchanged into 100 US dollar, it is 12750 yen / 100 = 127.5 yen.
Necessary amount of Japanese yen for exchanging 102 US dollar is 127.5 × 102 = 13005 yen.
And it is the amount I exchanged into 100 US dollar yesterday.
