In this type of questions, question is provided with substitutes for various mathematical symbols, followed by a question involving calculation of an expression or choosing the correct/incorrect equation. You have to put the real signs in the given equation and then solve the questions as required.
If '~' stands for '+', '@' stands for '±', '&' stands for '-', '*' stands for 'x', then find the value of: 5 & 7 * 6 & 4 = ?
Show answer & explanation
Correct answer: B
Explanation
After replacing the symbols with actual operations,
5-7×6-4
After solving according to the ‘BODMAS rule’,
= 5-7×6-4
= 1-42
= -41
Hence, the correct answer is option (2).