Three persons A, B and C are standing in queue. There are five persons between A and B and eight persons between B and C. If there ne three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue ?

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 28
Three persons A, B, C can be arranged in a queue in six different ways i.e., ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements i.e., CBA and CAB. We may consider the two cases as under
3 8 5 21
Case I : ←.
Now, 28 < 40. So, 28 is the minimum number of perosn in the queue.

Suggest Corrections

Similar questions

Q. Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue ?

Q. Three persons P, Q and R are standing in a queue. There are five persons between P and Q and eight persons between Q and R. If there be three persons ahead of Rand 18 persons behind P, what could be the minimum number of persons in the queue?

In a queue, Vijay is 14^th from the front and Jayant is 17^th from the end, while Mallika is standing half-way between Vijay and Jayant. If Vijay always stands ahead of Jayant and there are 48 persons in the queue, how many persons are standing between Vijay and Mallika?

Q. In a queue, Vijay is fourteenth from the front and Jack is seventeeth from the end, while Mary is in between Vijay and Jack. If Vijay be ahead of Jack and there be 48 persons in the queue, how many persons ar there between Vijay and Marry ?

Three people A,B & C are standing in a queue. There are 5 people between.A & B and 8 people between B & C. If there are 3 people ahead of C and 21 people behind A, what could be the minimum number of people in the queue?

Join BYJU'S Learning Program