35
23 is 1.15 of 20 . . . 15% more than 20.
20
20% more than 15 of anything is 18 of the same thing.
A number that is much more than 15 but less than 29 could be 20, 21, or any number up to 28. For example, 20 is greater than 15 and satisfies the condition of being less than 29. Similarly, 25 would also fit this description.
3/4 + 2/5 = 15/20 + 8/20 = 23/20
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.
A number that is much more than 15 but less than 29 could be 20, 21, or any number up to 28. For example, 20 is greater than 15 and satisfies the condition of being less than 29. Similarly, 25 would also fit this description.
20 occurs more than any other number, so it is the mode.
20 appears more than any other number, so it is the mode.