$$999\frac{{98}}{{99}} \times 99$$   is equal to :

A. 98999

B. 99899

C. 99989

D. 99998

Answer: Option A

Solution(By Examveda Team)

$$\eqalign{ & = 999\frac{{98}}{{99}} \times 99 \cr & = (1000 - 1)\frac{{98}}{{99}} \times 99 \cr & = \left[ {\left( {1000 - 1} \right) + \frac{{98}}{{99}}} \right] \times 99 \cr & = 99000 - 99 + 98 \cr & = 99000 - 1 \cr & = 98999 \cr} $$