Question

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged? 48×3-16+6÷3=?

• A. 5
• B. 14
• C. 11
• D. 8

Answer 1

Answer:

B. 14

We are told to interchange:

• + ↔ −

• × ↔ ÷

  Given expression:

$48 \times 3 - 16 + 6 \div 3$
Replace symbols

• $( \times \rightarrow \div )$

• $( - \rightarrow + )$

• $( + \rightarrow - )$

• $( \div \rightarrow \times )$

So the expression becomes:

$48 \div 3 + 16 - 6 \times 3$

Solve using BODMAS

$48 \div 3 = 16$
$6 \times 3 = 18$

Now:
$16 + 16 - 18$
$= 32 - 18 = 14$