Sagot :
considering 'x' is the increase then
20 = 16 (1 + x) ----(1+x) since we are to consider that 16 is 100% to find the actual percentage of which 20 is greater than 16
20 = 16 ( 1 + x)
20 = 16 + 16x
20 - 16 = 16x
4 = 16x
x = 4/16
x = 0.25
Therefore 20 is greater than 16 by 25%
The percent increase would be computed as:
(20-16)/16
= 4/16
= 1/4
= 0.25
Therefore 20 is 25% greater than 16
(20-16)/16
= 4/16
= 1/4
= 0.25
Therefore 20 is 25% greater than 16