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 '-', then find the value of: 6 ? 15 ! 5 & 8 = ?
Show answer & explanation
Correct answer: B
Explanation
? = ÷
! = ×
% = +
& = −
Equation:
6 ? 15 ! 5 & 8
Switching signs,
6÷15×5−8=?
0.4×5−8=?
2−8=?
? = -6