The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two digit number?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (cannot be determined)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Let the ten's digit be x and until's digit be y.
Then, x+y = 15 and x-y = 3 or y-x = 3.
Solving x+y = 15 and x-y = 3, we get: x = 9, y = 6.
Solving x+y = 15 and y-x = 3, we get: x = 6, y =9.
So, the number is either 96 or 69.
Hence, The number cannot be determined.
