Numerical Ability

Direction : Study the table carefully to answer the questions that follow :

Percentage of marks obtained by different students in different subjects :

1.What is the total marks obtained by Nisha in all the subject together ?
150 + 75 + 50 + 48 + 48 + 35 = 406

2.What is the approximate average marks obtained by all the students together in Geography ?
(60 + 92 + 76 + 72 + 64 + 60 + 80)/7 * 75/100 = 54

3. The number of students who got 70 % marks or above in all the subjects are –
None

4. How many students have scored more than 120 marks in Maths ?
1) 3
2) 2
3) 1
4) 4
5) None of these

5. If 120 marks are required to pass in Maths, How many students pass in the Maths exams –
120 marks out of 150 marks = 120/150 * 100 = 80%
Ashutosh, Rakesh and Nisha

 3

6. In which subject the overall percentage is the highest –
Maths

7.What is the ratio of total number of marks obtained by Rakesh in Physics and Chemistry together to Chinu in the same subjects?
Rakesh's Marks=87.5+85=172.5
Chinnu's Marks=87.5+40=127.5
Ratio=172.5/127.5
=23 : 17

Direction : Study the following information to answer the given questions :

Percentage of students in various courses of Engineering like Electronics, IT, CSE, Mechanical, Mining and Civil Engineering.

8. How many girls are there in course Mechanical Engineering and Computer Science Engineering together ?
C = 1200 * (35% + 10%) = 1200 * 45% = 540

9. For which pair of courses is the number of boys same ?
12.2%*2000-12.2%*1200=100
8%*2000-8%*1200=100

10. For which courses the number of boys are the minimum ?
Electronics Engineering

11. For course I.T. What is the ratio of the boys to girl ?
102 : 122

12.What is the total number of student in mining and Computer Science Engineering together ?
 640

13.What is the ratio between boys in Mechanical and Civil Engineering together to girls in the same subject ?
134 : 45

14.What is the average number of girls in course I.T Mechanical and Civil Engineering together ?
108
(144 + 120 + 60)/3 = 324/3 = 108