Data Interpretation — MCQ ও উত্তর

Data Interpretation · । এই অধ্যায়ে মোট 52টি প্রশ্ন আছে। নিচে প্রথম 10টি প্রশ্ন ও সঠিক উত্তর দেওয়া হলো।

এই অধ্যায়ে সব প্রশ্নে অনুশীলন করুন

1. No. of students who failed in the state ‘Q’ is (in thousands):

   1. 80
   2. 240
   3. 960
   4. 1200
   5. None

   সঠিক উত্তর: 960

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C From the given graph it is clear that, ∵ Percentage of Q students who passed = 20% ∴ Percentage Q of students who failed = 100 – 20 = 80% ∴ No. of students who failed are = (80/100) ×1200 thousand = 960 thousand.

2. Total No. of students passed in the states of Q and R (in thousands) is:

   1. 240
   2. 400
   3. 640
   4. 720
   5. None

   সঠিক উত্তর: 640

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C ⇒ Passed student in ‘Q’ = (20/100) ×1200 = 240 thousands, ⇒ Passed students in ‘R’ = (50/100) × 800 = 400 thousands, ∴ Total = (240 + 400) thousand = 640 thousands.

3. Ratio of number of the students passed to the number of students failed in the state ‘S’ is:

   1. 3 : 4
   2. 4 : 1
   3. 2 : 3
   4. 1:4
   5. None of these

   সঠিক উত্তর: 4 : 1

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option B ⇒ Students passed in state ‘S’ = 80% of 200 =\(\frac{{80}}{{100}} \times 200\) ⇒ Students failed in state ‘S’ = 20% of 200 = \(\frac{{20}}{{100}} \times 200\) ∴ Required ratio = 80/20 = 4/1 ⇒ Ratio = 4 : 1.

4. How many students passed in the states ‘R’ and ‘T’ (in thousands)?

   1. 400
   2. 420
   3. 820
   4. 20
   5. None

   সঠিক উত্তর: 820

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C ⇒ Total number of students passed in the states ‘R’ and ‘T’ \(= \left( {\frac{{50}}{{100}} \times 800 + \frac{{30}}{{100}} \times 1400} \right){\rm{thousands}}\) = 400 + 420 = 820 thousands.

5. What is the average number of peoples using mobile service ‘M’ for all the years together?

   1. 48,000
   2. 60,000
   3. 66,000
   4. 82,000
   5. None of these

   সঠিক উত্তর: 60,000

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option B Total number of people using mobile service ‘M’ for all the years together = (60 + 50 + 80 + 60 + 50) × 1000 = 300,000 We know that: Average=sum of elementsnumber of elementsAverage=sum of elementsnumber of elements Required average=300,0005=60,000

6. The total number of peoples using both the two mobile services in the year 2010 is what percent of total number of people using both the two mobile services in the year 2011?

   1. 72
   2. 48
   3. 60
   4. 54
   5. None of these

   সঠিক উত্তর: 60

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C ⇒Total number of peoples using both the two mobile services in the year 2010 – = (50 + 40) × 1000 = 90,000 ⇒Total number of peoples using both the mobile services in the year 2011 – = (80 + 70) × 1000 = 150,000 Now,⇒Required percentage \(= \frac{{90,000}}{{150,000}} \times 100\% = 60\%\)

7. What is the ratio of the number of people using mobile service ‘M’ in the 2009 to that of those using the same service in the year 2013?

   1. 3:4
   2. 6:5
   3. 7:4
   4. 5:4
   5. None of these

   সঠিক উত্তর: 6:5

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option B Number of people using mobile service ‘M’ in the year 2009 – = 60,000 Number of people using mobile service ‘M’ in the year 2013 – = 50,000 Now, Required ratio = 60,000 : 50,000 = 6 : 5.

8. The number of peoples using mobile service ‘N’ in the year 2009 forms ‘approximately’ what percent of the total number of people using both the two mobile services in that years?

   1. 64%
   2. 74%
   3. 54%
   4. 44%
   5. 34%

   সঠিক উত্তর: 54%

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C The number of people using mobile service ‘N’ in the year 2009 – = 70,000, The number of people using both the mobile services in the year 2009 – = (70 + 60) × 1000 = 130,000, Now,Required percentage\(= \frac{{70,000}}{{130,000}} \times 100\% = \frac{{700}}{{13}}\% = 53.84\%\) i.e. approximately 54%

9. What is the total number of peoples using mobile service ‘M’ in the years ‘2011’ and ‘2012’ together?

   1. 115,000
   2. 120,000
   3. 140,000
   4. 90,000
   5. None of these

   সঠিক উত্তর: 140,000

   ব্যাখ্যা: সমাধান সঠিক উত্তর: Option C Total number of peoples using mobile service ‘M’ in the year ‘2011’ and ‘2012’ together = (80 + 60) × 1000 = 140,000

10. What will be the approximate percentage increase in production of rice in year 1999-2000 over the year 1996-97?

    1. 6%
    2. 9%
    3. 98%
    4. 02%
    5. 2%

    সঠিক উত্তর: 9%

    ব্যাখ্যা: সমাধান সঠিক উত্তর: Option B Production of rice in 1996-1997 = 81 million tonnes Production of rice in 1999-2000 = 89 million tonnes ∴ Increase in production from 1996-97 to 1999-00 = (89 – 81) million tonnes = 8 million tonnes Now, percentage increase = (8/81) × 100 ≈ 9.9% ∴ Percentage increase in production of rice in year 1999-2000 over the year 1996-97 is approximately 9.9%