Answer is 16
8 (6 1/4 x 3.2 - 18)
8 ( 6x4+1) = 25/4
8 (25/4 x 3.2 - 18)
8 (25/4 x 3.2) = 80/4 = 20
8 (20 - 18) = 2
8 x 2 = 16
1% of 19,500= 195
6% = 1%x6 = 195x6 = 1170
19500+1170=20670
23 regular coffees were served.
25% means 1/4
25% x 92 = 23 regular coffees were served.
92 - 23 = 69 decaf coffees were served.
This is because 100% is the same as 1. You can’t have more than a 100% chance of something happening. 100% means there is no chance it won’t happen, so you can’t go higher.
You also can’t have a negative probability. 0, or 0%, means there is absolutely no chance it will happen.
So, you have to have a probability between “not a chance it will happen” (0) and “not a chance it won’t happen” (1).
