The pie-chart shows percentage-wise distribution of teachers who teach six different subjects. Study the pie-chart and answer the question.
Total number of teachers = 1650
What is the difference between the total number of teachers who teach Physics and Maths and the total number of teachers who teach chemistry and biology?
Answer & explanation
Correct answer: option 3
Total number of teachers = 1650
Number of teachers who teach Physics and Maths = 18% + 14% = 32%
Number of teachers who teach chemistry and biology = 24% + 12% = 36%
Now ,
Difference between the total number of teachers who teach Physics and Maths and the total number of teachers who teach chemistry and biology
= \(\frac{36 - 32 }{100 }\) × 1650
= \(\frac{1 }{25 }\) × 1650
= 66