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: 6 $ 15 & 11 $ 5 = ?
Show answer & explanation
Correct answer: C
Explanation
& = +
˜ = ÷
? = −
$ = ×
6 $ 15 and 11 $ 5
Switching the symbols:
6 × 15 + 11 × 5 = ?
90 + 55 = ?
? = 145