Which two signs should be interchanged to make the given equation correct?
11 - 2 x 16 + 19 = 25
Answer & explanation
Correct answer: option 3
In the equation, 11 - 2 x 16 + 19 = 25
if we interchange - and x, it becomes
11 x 2 - 16 + 19 = 25
Using BODMAS
LHS = 22 - 16 + 19
= 25 = RHS
The exchange makes the equation correct