Question

Subtracting $4mn$ from the sum of $2mn$ and $2mn$ gives

• A. $0$
• B. $mn$
• C. $2mn$
• D. $-2mn$

Answer 1

The correct option is A

$0$

We shall first find the sum of $2mn$ and $2mn$.

$2mn+2mn=(2+2)mn=4mn$

Now, we shall subtract $4mn$ from the above sum(which is $4mn$).

i.e., $4mn-4mn=0$