Each side of a rectangular field is diminished by 40%. By how much percent is the area of the field diminished ?
A. 32%
B. 64%
C. 25%
D. 16%
Answer: Option B
Solution (By Examveda Team)
By using successive formulaNet decrease in area
$$\eqalign{ & = 40 + 40 - \frac{{40 \times 40}}{{100}} \cr & = 64\% \cr} $$
This Question Belongs to Arithmetic Ability >> Percentage
Join The Discussion