The value of $$\left( {\frac{{8.6 \times 5.3 + 8.6 \times 4.7}}{{4.3 \times 9.7 - 4.3 \times 8.7}}} \right)$$     is :

A. 3.3

B. 6.847

C. 13.9

D. 20

Answer: Option D

Solution(By Examveda Team)

Given expression :
$$\eqalign{ & = \frac{{8.6 \times \left( {5.3 + 4.7} \right)}}{{4.3 \times \left( {9.7 - 8.7} \right)}} \cr & = \frac{{8.6 \times 10}}{{4.3 \times 1}} \cr & = 20 \cr} $$