23 is 1.15 of 20 . . . 15% more than 20.
20
20% more than 15 of anything is 18 of the same thing.
3/4 + 2/5 = 15/20 + 8/20 = 23/20
20 appears more than any other number, so it is the mode.
15
23 is 1.15 of 20 . . . 15% more than 20.
20
20
20 x (1 + (15/100)) = 20 x 1.15 = 23
5
Five
20% more than 15 of anything is 18 of the same thing.
Yes, 20 15 vision is better than 20 20 vision.
3/4 + 2/5 = 15/20 + 8/20 = 23/20
20 appears more than any other number, so it is the mode.
20 occurs more than any other number, so it is the mode.