In a certain class, the ratio of passing grades to failing grades is 7 to 5. How many of the 36 students failed the course?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

The ratio of passed grades to failed grades is 7 : 5 which tells that, of every 7 + 5 = 12 students, five failed.

i.e., of the class failed.

Then, = 15

Thus, out of 36, 15 students failed.

Answered by  | 4th Jun, 2014, 03:23: PM