DSSSB · Reasoning

What will come in place of ‘?’ in the following equation, if ‘×’ and ‘+’ are interchanged and ‘7’ and ‘9’ are interchanged? 7 × 2 + 9 = ?

  1. 23
  2. 21
  3. 25
  4. 19
Answer and detailed solution are available in the protected study screen.
Register or login to attempt