Your answer is 40. Simply divide 1200 by 30 and you will get 40.
The answer is either c of d but if I had to pick one I would say C.
0 = 5/4 - 1/4x this represents the original amount. You then solve the equation and find that x = 5 representing how many pieces she will have after cutting the ribbon.
1/21 * 1/20 = 1/420 that is the probability that you are chosen first.
Probability of your friend chosen first = 1/420 also.
So the required probability = 1/420 + 1/420 = 1/210 Answer
Its D
The answer is A, because 2.54 times 20 equals 50.8
