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: 8 $ 2 & 4 ^ 7 = ?
Show answer & explanation
Correct answer: B
Explanation
% = +
& = −
$ = ÷
^ = ×
8 $ 2 & 4 ^ 7
Switching the symbols:
8÷2−4×7=?
4−4×7=?
? = 4-28
? = -24