## Answer & Solution

**Option A**

No. of students in secondary = 80% of 800 = 640

Rest Students = 800 - 640 = 160

Rest students are divided equally into class 12 and 11. So,

No. of students in class 12 = $$\frac{160}{2}$$ = 80

Now, total vegetarian = 53%

No. of Total vegetarian = 53% of 800 = 424

55% of secondary students are vegetarian.

No. of vegetarian in secondary = 55% of 640 = 352

No. vegetarian in 11 = 50% of 80 = 40

Thus, no. of vegetarian in 12,

= 424 - 352 - 40 = 32

Thus,

In class 12 total vegetarian = 32.

So, % of vegetarian = $$\frac{32}{80}$$ × 100 = 40%