The answer is 53
Do what's inside parentheses first then add or subtract all the numbers together
The answer would be C: 2/3
There are 4 out of 6 letters that aren’t vowels (BMPC)
And 4/6 = 2/3
It would help if we represent the information in form of two-ways table as shown below
The number of students who are not on probation is 104 students
There are 23 students who are not on probation and is satisfied is 81 students
The probability of students not on probation and is satisfied is 81/104
The LCD for 3/10,20/25,and 18/75 is 150
Answer (13 of the original arrangements are duplicates now, as
AAAF F F FDDDDCC, AAF F F FDDDDCCA, ..., CAAAF F F FDDDDC
are identical): 900900/13 = 69300.