What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged?

$$161 \div 4 + 75 imes 5 - 4 = ?$$

Question

What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged?

$$161 \div 4 + 75 	imes 5 - 4 = ?$$

Accepted Answer

**Solution:**

1. Original expression:
   $$161 \div 4 + 75 	imes 5 - 4$$

2. According to the problem, interchange:
   - '+' and '-'
   - '×' and '÷'

3. After interchange, the expression becomes:
   $$161 	imes 4 - 75 \div 5 + 4$$

4. Calculate step-by-step using BODMAS:

- First, multiplication and division from left to right:
     - $$161 	imes 4 = 644$$
     - $$75 \div 5 = 15$$

- Now the expression is:
     $$644 - 15 + 4$$

- Perform addition and subtraction from left to right:
     - $$644 - 15 = 629$$
     - $$629 + 4 = 633$$

**Answer:** 633

Answer

Answer

Answer