At Lions High school 100 students are taking chemistry and 80 students are taking Biology. If 20 students are taking both chemistry and Biology , what is the ratio of the students taking only chemistry to the number taking only Biology?

Select the correct answer choice of the following Question : "At Lions High School 100 students are taking Chemistry and 80 students are taking Biology. If 20 students are taking both Chemistry and Biology, what is the ratio of the students taking only Chemistry to the number taking only Biology?

A

3/4

B

4/3

C

5/4

D

1/4

In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B ?

A

30%

B

70%

C

78.5%

D

87.5%

Read the given information and decide the appropriate course of action. NEET examination has laid the following conditions to qualify for appearance in the NEET Exam. 1. Candidate should pass Grade 12 with a minimum of 50% marks in Biology, Physics and Chemistry group. 2. Candidate should have completed 17 years as on 31-03-2018. 3. Candidate should have opted for Biology, Physics and Chemistry in Grade 12.
Candidate 1 : Ram's date of birth is 14-05-2001, with 40% marks in Mathematics, Physics, Chemistry and Biology. Candidate 2 : Sham's date of birth is 16 - 08 - 2000, with 60% marks in Biology, Physics and Chemistry.
Who is eligible to write the NEET Exam ?

A

Both candidate 1 and 2 are eligible

B

Neither candidate 1 nor 2 is eligible

C

Only candidate 1 is eligible

D

Only candidate 2 is eligible

Principle: Even if a person suffers a loss, he will be entitled to receive compensation only if a legal right is violated.
Factual Situation: An English teacher in a famous 'English School' after having some rift with the management left the school and started a new 'Language School' very close to the English School. Many students of the English School left it and joined the new Language School. As a result, the English School suffered huge financial loss and hence filed a suit for compensation against the new school.

A

The English School management will succeed as there is a substantial loss of their profit which is their legal right

B

The English School management will not succeed as anybody can start a new school which is their legal right

C

The English School will succeed as nobody can start a rival school in the close vicinity of an existing school

D

The English School management will not succeed as there is no violation of any legal right

Statements : All the goats are tigers. All the tigers are lions.

Conclusions :
I. All the goats are lions.
II. All the lions are goats.
III. Some lions are goats.
IV. Some tigers are goats.

A

All the four

B

Only (I), (II) and (III)

C

Only (I), (III) and (IV)

D

Only (II), (III) and (IV)

E

Only (III) and (IV)

Read the data given below and answer the questions based on it. In the CBSE Board exams last year, 53% passed in Biology, 61% percent passed in English, 60% in Social studies, 24% in Biology and English, 35% in English and social studies, 27% in Biology and social studies and 5% in none. What is the ratio of percentage of students who passed in Biology and Social Studies but not English in relation to the percentage of students who passed in Social Studies and English but not Biology?

A

5:7

B

7:5

C

4:5

D

5:4

Two different schools, A and B, have the same number of students. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. What is the ratio of the boys in school A to the girls in school A?

A

1:2

B

2:3

C

3:4

D

4:5

The ratio of the numbers of boys and girls in a school was 5 : 3. Some new boys and girls were admitted to the school, in the ratio 5 : 7. At this, the total number of students in the school became 1200 and the ratio of boys to girls changed to 7 : 5. The number of students in the school before new admissions was = ?

A

700

B

720

C

900

D

960

In a primary school the average weight of male students is 65.9 kg and the average weight of female students is 57 kg. If the average weight of all the students ( both male and female ) is 60.3 kg and the number of male students in the school is 66, what is the number of female students in the school?

A

162

B

168

C

180

D

112

Directions : In each of the following questions a statement is given, followed by three conclusions. Give answer :

Statement : The school authority decided to open a summer school this year in the school compound for the students in the age range of 7 - 14 years.

Assumptions :
I. All the students will attend the summer school.
II. All the parents will prefer to remain in the city than going out of town for enabling their children to attend the summer school.
III. Those who cannot afford to go out of station will send their children to summer school.

A

None is implicit

B

Only II is implicit

C

Only II and III are implicit

D

Only III is implicit

E

All are implicit