Question

If '+' means '÷', '—' means '×', '×' means '+' and '÷' means '—', what will come in place of the question mark (?) in the following equation?

9 × 8 + 4 – 8 ÷ 5 = ?

• A. 23
• B. 18
• C. 20
• D. 35

Answer 1

Answer:

C. 20

The value that will come in place of the question mark is 20.

First, decode the mathematical operators using the given code rules:

* × becomes +

* + becomes ÷

* - becomes ×

* ÷ becomes -

## 1. Substituting the signs into the equation:

* Original: 9 × 8 + 4 - 8 ÷ 5 = ?

* Decoded: 9 + 8 ÷ 4 × 8 - 5 = ?

## 2. Solving using BODMAS rules:

* Step 1: Division (÷)

* 8 ÷ 4 = 2

* The equation becomes: 9 + 2 × 8 - 5

* Step 2: Multiplication (×)

* 2 × 8 = 16

* The equation becomes: 9 + 16 - 5

* Step 3: Addition and Subtraction (+ / -)

* 9 + 16 = 25

* 25 - 5 = 20