In an examination, 80% students passed in Physics,70% in Chemistry whi

1.	In an examination, 80% students passed in Physics,70% in Chemistry while 15% failed in both the sub-jects. If 3250 students passed in both the subjects.Find the total number of students who appeared inthe examination.
Answer» Answer: 500 STUDENTS 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

In an examination, 80% students passed in Physics,70% in Chemistry while 15% failed in both the sub-jects. If 3250 students passed in both the subjects.Find the total number of students who appeared inthe examination.

Answer»

Answer:

500 STUDENTS

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

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In an examination, 80% students passed in Physics,70% in Chemistry while 15% failed in both the sub-jects. If 3250 students passed in both the subjects.Find the total number of students who appeared inthe examination.​

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In an examination, 80% students passed in Physics,70% in Chemistry while 15% failed in both the sub-jects. If 3250 students passed in both the subjects.Find the total number of students who appeared inthe examination.