Which of the following interchanges of signs would make the given equation correct?
3-6÷ 9 + 6 × 2 = 6

Correct option is D

Given :

​​3-6÷ 9 + 6 × 2 = 6

Solution: 

Interchange sign

Option (a) :  $$\div$$ , $$\times$$ 

$$3 - 6 \times 9 + \frac{6}{2} = 6$$ 

$$3 - 54 + 3 = 6$$ 

$$-51 + 3 = -47$$ (False)

Option (b): +, $$\times$$ 

$$3 - \frac{6}{9} \times 6 + 2 = 6$$ 

$$3 - 4 + 2 = 6$$ 

​
$$-1 + 2 = 6$$ 

$$1 = 6$$ (False)

Option (c):  $$\div$$ , +

$$3 - 6 + \frac{9}{6} \times 2 = 6$$ 

$$3 - 6 + 2 = 6$$ 

$$-3 + 2 = 6$$  

$$-1 = 6$$ (False)

Option (d): -, $$\times$$​

$$3 \times \frac{6}{9} + 6 - 2 = 6$$ 

$$2 + 6 - 2 = 6$$  

$$6 = 6$$ ( It is true).

Correct Option : (d)