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DIRECTIONS for the following four questions:
The proportion of male students and the proportion of vegetarian students in a school are given below. The school has a total of 800 students, 80% of whom are in the Secondary Section and rest equally divided between Class 11 and 12.
In the Secondary Section, 50% of the males are vegetarian. Which of the following statements is correct?
x is the fraction of male members in the secondary section.
0.6*80 + 0.55*80 + 640x = 800*0.475
=> 0.6 + 0.55 + 8x = 4.75
=> 8x = 3.6 => x = 0.45
=> 45% are males and 55% are females => 288 males and 352 females
=> There are 144 vegetarian males and 208 vegetarian females .
Also there are 144 non-vegetarian males and 144 non-vegetarian females.
So leaving vegetarian females all others are same in nos.
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