Answer:
179
Step-by-step explanation:
180- 2=189 this is because 2 of the students the 180 received a or b
The given question is incorrect. The correct question is:
Of the 180 students in a college course, 1/4 of the students earned an A for the course, 1/3 of the students earned a B for the course, and the rest of the students earned a C for the course. How many of the students earned a C for the course?
A. 75
B. 90
C. 105
D. 120
E. 135
The number of students who earned a C for the course can be represented by the fraction of 5/12 of the total number of students and is equal to 75. Hence, option A is the right choice.
A fraction in general means a part of. We represent a part of the whole using fractions. The total number of parts is taken as the denominator, while the parts used are taken as the numerator.
Fraction = Numerator/Denominator.
We are given that there are 180 students in a college course. 1/4 of them get an A for the course while 1/3 get a B. Rest of the students to get a C for the course.
We need to find the number of students who get a C.
Let the fraction of students getting a C be x.
We know that a whole fraction is always = 1.
∴ Fraction of students getting an A + Fraction of students getting a B + Fraction of students getting a C = Whole fraction.
or, 1/4 + 1/3 + x = 1
or, x = 1 - 1/4 - 1/3 = (12 - 3 - 4)/12 = 5/12
∴ 5/12 of the students get a C for the course.
Number of Students who get a C for the course = 5/12 of 180 = 5*15 = 75.
∴ The number of students who earned a C for the course can be represented by the fraction of 5/12 of the total number of students and is equal to 75. Hence, option A is the right choice.
Learn more about the fractions at
brainly.com/question/11562149
#SPJ2
