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The break-up of the students in a university by subject major is given in the polar pie-chart. The bar chart shows the number of students who major in physics by geographic location.
If the proportion of physics majors who are from Delhi is the same as the proportion of engineering majors who are from Delhi, how many engineering majors are from Delhi?
Total number of Physics major from all locations = 225
$$\therefore $$ Total number of students = $$\frac{225}{0.18}$$ = 1250
Number of engineering students = 20% * 1250 = 250
So, basis the given condition we have
$$\frac{18}{225}$$=$$\frac{x}{250}$$
=> x = 20
Hence, option D
(Note: This question has been presented as was in the actual paper and has been solved by the aid of visual inference)
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