Question

out of
total students
100/3% are in Hostel A and
remaining
are in Hostel B
if 20 students from Hostel B
are shifted to Hostel A
Then total students in Hostel
A becomes 50% of total
students .If 20 students
from Hostel A are stifted
to Hostel B then the total
Students in Hostel A becomes
what percentage of total students​

Answer 1

Correct Option: B

Let total students = N

students in hostel A = 33 1 % of N = N

3 3

students in hostel B = N – 100N = 2N

3 3

According to question-

⇒ N + 20 = N

3 2

⇒ 20 = N

6

⇒ N = 120

Now, if 20 students from hostel A are shifted to hostel B-

⇒ N – 20

3 × 100 = 20 × 100 = 16.67%

N 120