Question

Directions (Q1 to Q4): There are 3 counters in a Reservation Centre. The processing speed at each counter is 2 customers
per minute. The customer inflow is 5 per minute. Customers get uniformly divided among the three queues, i.e., 4th
customer goes queue No.1; 5th to 2nd, 6th to 3rd and again 7th to 1st queue and so on.
1. Total number of people inside the Reservation Centre just before the counters opened was 21. After how much time
will at least one of the counters will be free?
(a) 20 min.
(b) 21 min.
(c) 16 min.
(d) None of these.
2. At the end of 21 minutes how many customers will be in queue if initially 21 people were waiting before the counters
opened?
(a) 3
(b) 4
(c) None.
(d) Can't be determined.
3. One fine morning one of the counter person was late by 15 minutes and when he opened the counter all people waiting
got equally divided among 3 queues. After how much time he can see the counter empty assuming that nobody was
there waiting before the Reservation Centre opened?
14 min.
(b) 16 min.
(c) 15 min.
(d) Can't be determined.
If the counters open at 10:00 AM and initial crowd before the opening was 27, by what time will a customer finish his
work if he has entered the office exactly at 10:15 AM.?
(a) 10.15 AM. (b) 10:16 AM
(C) 10:17 AM
(d) 10:18 AM​

Answer 1

Answer

It is from which class Question

I didn't understand sorry

Answer 2

Answer:

1. 20 minute

2. 21 minute