Study the following pie-chart and answer the following question.
Total number of students in a college in various fields = 5000
Distribution of the number of students int various fields:

What is the difference between the number of boys in IT and number of boys in ECE?
Answer & explanation
Correct answer: option 3
Total number of students of IT = 14% × 5000 = 700
No. of girls in IT = 65% × 700 = 455
No. of boys in IT = 700 - 455 = 245
Total number of students of ECE = 16% × 5000 = 800
No. of girls in ECE = 72% × 800 = 576
No. of boys in ECE = 800 - 576 = 224
Required difference = 245 - 224 = 21