# math

posted by david

100 student appeared in class test for a combined english and hindi examination. 70 students passed in both,8 failed in english and hindi and 5 failed in hindi only find how manystudents failed in english and how many students passed in hindi also find how many students passed in english

1. Reiny

Use Venn diagrams
draw two intersecting circles , one labeled E and the other labeled H within a rectangle.
You know the intersection of E and H is 70
and the part outside the two circles is 8
It said 5 failed in H only, so they must have passed E, so they can't be part of the 8, but must be the part of E which is not the intersection. Put 5 into the "E only".
label the "H only" as x
then
x + 70 + 5 + 8 = 100
x = 17

75 passed English, and 87 passed Hindi

## Similar Questions

1. ### Probability

A college professor has been studying the relationship between the attendance habits of his students and the grades they earn in his courses. A breakdown of 200 of his students revealed the following: Attended regularly --- 160 Attended …
2. ### math

out of 100 students in a final examination of class 10, 70 passed in mathematics, 60 passed in science and 10 failed in both subject If 10 students absent find the number of students who passed both subject by using venn diagram
3. ### Logic

Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the …
4. ### ashford

Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the …
5. ### venn diagram

IN A CLASS OF 130 STUDENTS.85 PASSED IN MATHS, 60 PASSED IN SCIENCE, 10 FAILED IN BOTH. a) how many passed in science but failed in math b)how many failed in exactly one subject
6. ### ma

In a class of 100 students, 40 failed in Math, 30 failed in Physics, 60 failed in Chemistry. 35 passed in both Math and Physics. 20 passed in Physics and Chemistry. 25 passed in Math and Chemistry. Each student passed in at least one …
7. ### mathematical methods for economics

in a class of 300 students,they were given mathematics test in three subjects namely,economics,statistics and mathematics,90 students failed in economics,100 failed in statistics,96 failed in mathematics,60 failed in economics and …
8. ### Math

out of 80 candidates who appeared for a combined test in English and Hindi, 64 passed at least in one subject. If 45 passed in English and 52 passed in hindi. how many passed in both the subject ?
9. ### Math

In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at lest must have failed in all …
10. ### maths

52% of students failed in english 48% failed in maths 17% failed in both what is the percent of students passed in both?

More Similar Questions