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 'x', '$' stands for '-', '~' stands for '+', then find the value of: 12 $ 10 $ 6 @ 15 = ?
Show answer & explanation
Correct answer: D
Explanation
@ means +
& means ×
$ means −
~ means ÷
Equation:
12 $ 10 $ 6 @ 15
Switching signs:
12 − 10 − 6 + 15 = ?
27 − 16 = ?
? = 11