hi everyone.
In an examination, the number of those who passed and the number of those who failed were in the ratio 4:1. If 35 less had appeared and the number of failures were 9 more than earlier, the ratio of students who passed to the number of students who failed would have been 2:1. Find the total number of those who appeared at the examination.
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Consider the provided information.
the number of those who passed and the number of those who failed were in the ratio 4 : 1.
Let the number of failed students be x
The Number of passed students = 4x
The total number of students was 5x .
If 35 less had appeared and the number of failures were 9 more than earlier,
If total number of students be 5x – 35
number of failed students = x + 9
passed students = (5x – 35)–(x + 9)= 4x–44
The ratio of students who passed to the number of students who failed would have been 2 : 1.
The total number of students are 5x=5×31=155
Hence, the total number of students are 155.
Step-by-step explanation:
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