Ali took five Math tests during the semester and the mean of his test score was 85. If
his mean after the first three was 83, What was the mean of his 4th and 5th tests.
Answers
Answer:
class took two tests, one in Physics and the other in Math.1/3 rd
of the class failed
in Math and 1/2 of the class failed in Physics. 60% of those who passed in Physics
also passed in Math. If 300 students took both the tests, then how many students
failed in both the subjects?class took two tests, one in Physics and the other in Math.1/3 rd
of the class failed
in Math and 1/2 of the class failed in Physics. 60% of those who passed in Physics
also passed in Math. If 300 students took both the tests, then how many students
failed in both the subjects?
Step-by-step explanation:
class took two tests, one in Physics and the other in Math.1/3 rd
of the class failed
in Math and 1/2 of the class failed in Physics. 60% of those who passed in Physics
also passed in Math. If 300 students took both the tests, then how many students
failed in both the subjects?class took two tests, one in Physics and the other in Math.1/3 rd
of the class failed
in Math and 1/2 of the class failed in Physics. 60% of those who passed in Physics
also passed in Math. If 300 students took both the tests, then how many students
failed in both the subjects?