Quantitative Aptitude: Data Interpretation Questions Set 148

Directions (1-5): Study the following information carefully to answer the following:

Rajaji college has five different types of groups, Maths, Physics , Chemistry, Commerce and computer . The total number of students are 2000. One-fourth of the total number of students are Commerce . 10% of the total students are Chemistry students . 25% of the total students are Physics. Remaining Students are either Computer or Physics students . The number of Physics Students are 120 more than the number of students of computer.

1. If 20% of commerce students are failed , what is the number commerce students are passed?
   500
   400
   300
   200
   100
   Option B
   Number of Maths students =25 x 2000/100 = 500
   Number of Commerce students = 2000 x1/4 = 500
   Number of Chemistry students =10 x2000 /100 = 200
   Number of computer + Physics students = 2000 – ( 500 +500 + 200) = 800
   Number of computer students + no.of computer students +120 =800
   2( number of computer students ) = 800 – 120 = 680
   Number of computer students = 680/ 2= 340.
   Number of physics students = 120 + 340 =460

   Number of commerce students = 500
   Failed = 20% of 500 = 20/100 x 500 = 100
   So, number of students passed = 500 – 100 = 400.
   

    

2. What is the ratio of the total number of Commerce students to the total number of Students in computer and physics students together?
   
   1:5
   3:4
   5:8
   6:3
   5:9
   Option C
   Ratio of commerce and ( computer + physics)= 500 🙁 340 +460 )
   = 500: 800 = 5:8

    

3. What is average of the total number of students in computer, Chemistry and Commerce students together?
   456.8
   234.8
   346.7
   123.6
   236.9
   Option C
   Average = (500 + 200 + 340 ) / 3 = 346.7

    

4. What is the difference between the total number of students in computer and maths students together and the number of Physics students?
   
   280
   380
   480
   580
   680
   Option B
   Difference = ( computer + maths) – physics
   = ( 340 + 500 ) – 460 = 380
   

    

5. The number of Chemistry students are approximately what percent of the total number of maths students and commerce students together?
   
   10
   20
   30
   40
   50
   Option B

   Number of maths + commerce = 500 + 500 =1000.
   Number of Chemistry students = 200
   percentage = 200/ 1000 x 100 = 20%
   

    

Directions (6-10): Study the following information carefully to answer the following:

The subsequent tables show the quantity of 3 kinds of books Social, Science and English sold by Venus Publication in 5 totally different colleges of India, within the year 2019 and the other table shows the profit % earned by Venus Publication from these 5 colleges on the 3 books given above. Study each the graphs fastidiously and answer the queries that follow:

The following table shows the no of books sold in thousands:



6. Total no. of Social books sold in B, D and E is what percentage of total English books sold in these schools?
   
   56.5%
   34.90%
   65%
   45%
   78.47%
   Option E
   Total Social books sold in B, D and E together
   = 40,000 + 5,000 + 10,000 = 55,000
   Total English books sold in these schools together
   = 30,000 + 20,000 + 20,000 = 70,000
   Required percentage = (55,000/70,000) × 100 = 78 .47%
   

    

7. What is the total profit earned on Science book from B, C and E if cost price of one Science book is Rs. 120 (in Rs. lakhs)
   Rs. 52,80,000
   Rs. 22,80,000
   Rs. 12,80,000
   Rs. 70,80,000
   Rs. 2,80,000
   Option B
   Total profit earned =25,000×120×40/100+20,000×120×30/100+15,000×120×20/100
   = Rs. 22,80,000
   

    

8. If Rs.120 is the cost price of Social book , then what is the total selling price of this book earned from A, C and D together (in Rs. Lakhs )?
   79 , 20, 000
   60 , 20, 000
   59 , 20, 000
   79 , 45, 000
   79 , 40, 000
   Option A
   Selling price earned from School A = 30,000 × 120 × 140/100 = 50, 40,000
   Selling price earned from School C= 15,000 × 120 × 120/100 = 21, 60, 000
   Selling price earned from School D= 5,000 × 120 × 120/100 = 7,20,000
   Total selling price earned = 79 , 20, 000. (add all selling prices)
   

    

9. If one Social book, one Science book and one English book is costs Rs. 150, Rs. 120 and Rs. 100 respectively then total selling price of these three books in School D is what percent more or less than the total selling price of these three books in School E (Nearest integer)?
   5
   6
   7
   8
   9
   Option B
   Total selling price of all the three books in School D =5,000×150×120/100+20,000×120×125/100+20,000×100×110/100=61,00,000
   Total selling price of all the three books in School E =10,000×150×130/100+15,000×120×120/100+20,000×100×120/100=65,10,000
   Required percentage =(65,10,000-61,00,000 )/ 65,10,000 × 100 = 6% less
   

    

10. What is the average number of Science books sold in five schools together?
    5
    10
    15
    20
    25
    Option D
    Required average no. of Science books
    = (20 + 25 + 20 + 20 + 15) /5 = 100 / 5 = 20