YOU SAID:
Assuming you have 75 years left to live, how many Sundays would you have left?
INTO JAPANESE
残り75年の場合、日曜日は何日残っていますか？
BACK INTO ENGLISH
If the remaining 75 years, how many Sundays are left?
INTO JAPANESE
残りの75年の場合、日曜日はいくつ残っていますか？
BACK INTO ENGLISH
How many Sundays remain for the remaining 75 years?
INTO JAPANESE
残りの75年間、日曜日はいくつ残っていますか？
BACK INTO ENGLISH
How many Sundays remain for the remaining 75 years?
That didn't even make that much sense in English.
