​Simplify the following.

$$\frac{4.2 \times 4.2 - 1.9 \times 1.9}{2.3 \times 6.1}$$​​

Correct option is B

Given:

$$\frac{4.2 \times 4.2 - 1.9 \times 1.9}{2.3 \times 6.1}$$  ​​

Solution:

$$\frac{4.2 \times 4.2 - 1.9 \times 1.9}{2.3 \times 6.1}$$   

= $$\frac{17.64-3.61}{14.03}$$ 

= $$\frac{14.03}{14.03}$$ 

= 1