In a certain code, '2 + 3' is written as '5 - 1'. What is '7 + 1'?
Q1. In a certain code, '2 + 3' is written as '5 - 1'. What is '7 + 1'?
Answer: 9 - 1
Explanation: The given expression '2 + 3' equals 5, and '5 - 1' equals 4. Similarly, '7 + 1' equals 8, so the coded expression should equal 8, hence '9 - 1'.