In a sociology course, the professor informed the students of a recent exam ratio of 9:7:2 for As, Bs, and Cs. If 72 students scoring C or better completed the exam l, how many students received Bs?

Question

Mathematics

Manuel Lambert

20 July, 11:42

In a sociology course, the professor informed the students of a recent exam ratio of 9:7:2 for As, Bs, and Cs. If 72 students scoring C or better completed the exam l, how many students received Bs?

+5

Answers (1)

Know the Answer?

Raphael Wade · Answer 1

28

Step-by-step explanation:

To solve this, I would first add up the total of the numbers in the ratio.

9 + 7 + 2 = 18

Then, I would divide 72 by that number.

72/18 = 4.

Finally, I would multiply that quotient by 7 because 7 is the number in the ratio for B's.

4 x 7 = 28