In a college of 525 students, each student takes at least two items from among idly,dosa, puri, and chapathi?

Question

for his breakfast. if 375 students take idly, 375 students take dosa , 375 students take puri and 375 students take chapatti for their breakfast, the number of students who take all the four items is at most...

options :--

275
300
225
325
375

please give detailed answer.

please help me.

Answer 1

Let x = number of students taking all 4 items.
Then 525 - x students have to take at least 2 items.
Total items ≥ 4x + 2(525 - x)
As 375 of each item is taken, total should be less than 4 x 375 = 1500
=> 4x + 2 (525 - x) ≤Total no. of items ≤1500
=> 2x ≤1500 - 1050
=> x ≤225

Answer 2

unknown - are the four items limited in quantity??

otherwise - 525 at most