Data Interpretation – 2

Section : Data Interpretation

Directions : Study the following Pie-Chart carefully and answer the following questions.

Given below is the percentage wise distribution of teachers who teach six different subjects.

Total number of teachers = 3600

DI-Chart-2

Q1.If two-ninth of the teachers who teach Physics are female, then number of male Physics teachers is approximately what percentage of the total number of teachers who teach Chemistry ?

  1. 57
  2. 42
  3. 63
  4. 69
  5. 45

View Answer / Explanation

Correct Ans : 57 %

Explanation :

No. Of male teachers who teach Physics = (7/9)*3600*(17/100) = 476

Total No. of teachers who teach Chemistry = 3600 * (23/100) = 828

= > Req. Percentage = (476/828)*100 = 57

 

Q2.What is the total number of teachers teaching Chemistry, English and Biology ?

  1. 1226
  2. 684
  3. 1176
  4. 998
  5. 2232

View Answer / Explanation

Correct Ans : 2232

Explanation :

No. of teachers who teach Chemistry, English and Biology = ( 23+27+12) % of 3600 = 2232

 

Q3.What is the difference between the total number of teachers who teach English and Physics together and the total number of teachers who teach Maths and Biology together ?

  1. 352
  2. 684
  3. 643
  4. 653
  5. 455

View Answer / Explanation

Correct Ans : 684

Explanation :

English + Physics = 27+17 = 44%
Maths + Biology = 3+12 = 25%

Difference => 44 – 25 = 19% of 3600 => Ans = 684

 

Q4.What is the perspective ratio of the number of teachers who teach Maths and number of teachers who teach Hindi ?

  1. 13 : 7
  2. 7 : 13
  3. 7 : 26
  4. 8 : 15
  5. 13 : 8

View Answer / Explanation

Correct Ans : 13 : 8

 

Q5.If the percentage of Maths teachers is increased by 50 percent and percentage of Hindi teachers is decreased by 25 percentage then what will be the total number of Maths and Hindi teachers together ?

  1. 780
  2. 379
  3. 918
  4. 240
  5. 550

View Answer / Explanation

Correct Ans : 918

New No. of Maths teachers = (13/100)*3600*(150/100) = 702

New No. Hindi Teachers = (8/100)*3600*(75/100) = 216

Req. Sum = 702 + 216 = 918

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