In an examination, 80% students passed in physics, 70% in chemistry while 15% failed in both the subjects. if 325 students passed in both the subjects. find the total number of students who appeared in the examination ?
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102
325 students passed in both subjects
x is the percentage of students passed in both subjects
total=100%
Passed students=100-15(failed students)=85
85 is the passed students so
passed students in both subjects x= 80+70-85=65
Now x=65
65% of total students=325
.°. Total students = 325×100/65=500
Ans. There were total 500 students.
* mark it as BRAINLIEST answer.
x is the percentage of students passed in both subjects
total=100%
Passed students=100-15(failed students)=85
85 is the passed students so
passed students in both subjects x= 80+70-85=65
Now x=65
65% of total students=325
.°. Total students = 325×100/65=500
Ans. There were total 500 students.
* mark it as BRAINLIEST answer.
Answered by
11
Answer:
80-x + x + 70-x = 85. Therefore -x= -65 or x=65% or 65% which is 325 passed in both. Hence the total number of students who appeared for the examination is 32500÷65 =500 students.
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