"What's your phone number, Drew?" asked Eliot.
"Well," said Drew, "if you replace the first digit of your phone number with the next lowest odd digit, you get my number."
"And the code?"
"Curiously," said Drew, "the product of the four digits in that number is the same as the square root of my phone number."
"But that's insufficient information," pointed out Eliot.
"Yes," said Drew. "But if, in addition to that information, I were to tell you the sum of those four digits, then you'd have enough."
What is Drew's code? Note: In Britain, the "code" is four digits.
"Well," said Drew, "if you replace the first digit of your phone number with the next lowest odd digit, you get my number."
"And the code?"
"Curiously," said Drew, "the product of the four digits in that number is the same as the square root of my phone number."
"But that's insufficient information," pointed out Eliot.
"Yes," said Drew. "But if, in addition to that information, I were to tell you the sum of those four digits, then you'd have enough."
What is Drew's code? Note: In Britain, the "code" is four digits.