Answer:
Number of students who received A grade on the second test = 36
Step-by-step explanation:
Given that:
Number of students who received A grade on third test = 54
This is 150% of the students who received A on the second test.
Let,
x be the number of students who received A on the second test.
150% of x = 54
[tex]\frac{150}{100}x=54[/tex]
1.5x=54
Dividing both sides by 1.5
[tex]\frac{1.5x}{1.5}=\frac{54}{1.5}\\x=36[/tex]
Hence,
Number of students who received A grade on the second test = 36
