There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test?
One quarter passed with an A - so that's 24/4 = 6. Twelve of them passed with a B - and that can't include any who passed with an A, so that's a total of 12 plus 6 = 18. Assuming that it's only possible to pass with either an A or a B, that's 18/24 = 3/4 = 75%. But note that the question doesn't actually SAY that a pupil will fail the test if he/she got any other grade - that's an assumption that we've made - and in maths, it's not a good idea to make assumptions without stating what they are, so you might want to mention that - just in case it's a trick question!
To find the percentage of students who passed the math test, we need to know the total number of students who passed the test, and then calculate what percentage that is of the total number of students in the class.
We are given that 1/4 of the class passed the test with an A, so we can calculate the number of students who got an A by multiplying 1/4 by the total number of students:
(1/4) * 24 = 6
So, 6 students passed the test with an A.
We are also given that 12 students passed the test with a B.
To find the total number of students who passed the test (A and B), we can add the number of students who got an A and the number of students who got a B:
6 + 12 = 18
Therefore, 18 students passed the test.
Finally, to find the percentage of students who passed the test, we divide the number of students who passed the test (18) by the total number of students in the class (24), and then multiply by 100:
(18/24) * 100 = 75%
Therefore, 75% of the students in the class passed the math test.