Read the situation described below and answer the question. Amisha goes to her bank to withdraw money. When she reaches, there are 5 customers Q, R, S, T and U waiting before her as shown. The time that each person requires at the counter is also shown. The bank has 3 counters, and as each becomes free, the first person in the queue is called to that counter. (For example: The person already in counter 1 requires 10 seconds more (as shown) - then customer U will be called to Counter 1 and so on.) When her turn comes, which counter will service Amisha?
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Answers
Answer:
aisha will be called to 2nd counter
Complete question:
please refer to the attached screenshot for the complete question.
A. 50 seconds
B. 100 seconds
C. 160 seconds
D. 300 seconds
Answer:
counter 2 will service Amisha. She will have to wait for 160 seconds.
Option C is the correct answer.
Given:
5 customers(time taken in seconds) are Q(30), R(70), S(40), T(110) and U(50) waiting before Amisha
There are three counters( waiting time in seconds) are: counter 1 (10) ,counter 2 (50) ,counter 3 (150)
To find:
waiting period of Ameesha
counter which she will be served by
Solution:
we have 3 counters here, with the waiting time taken in seconds
let us calculate the waiting period and turn of customers in various counters.
counter 1 = 10 + 50(U) + 40 (S) + 70 (R) = 170 seconds
counter 2= 50 + 110 (T) = 160 seconds ( least time )
counter 3= 150 + 30 (Q) =180 seconds
when Anisha's turn comes, counter no 2 will be vacant, so she will be served by counter 2 after 160 seconds.
- after 10 seconds, U(50) goes to counter 1.
- after 40 more seconds, T(110) goes to counter 2,
- after 10 more seconds, S(40) goes to counter 1,
- after 40 more seconds, R(70) goes to counter 1,
- after 50 more seconds, Q(30) goes to counter 3
- after 10 more seconds, Ameesha finds counter 2 to be vacant, so she is served at counter 2.
Therefore, counter 2 will service Amisha. She will have to wait for 160 seconds.
Option C is the correct answer.
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