Five boys J, K, L, M and T are standing in a queue one after the other (not necessarily in the same order). There is only one boy between K and L. There are four boys behind J. T is three places ahead of L. Three of the following four pairs are alike in a certain way.
(A) TM
(B) JK
(C) KL
(D) TL
Choose the pairs which are alike in certain way from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A), (B) and (C) only
Number the places 1 to 5 from the front of the queue; “behind” means farther from the front.
There are four boys behind J, so J is 1st.
T is three places ahead of L:
So the pair (T, L) is (1st, 4th) or (2nd, 5th).
1st is J’s, so T is 2nd and L is 5th.
One boy stands between K and L, so K is 3rd. That leaves M 4th.
In TM, JK and KL one boy stands between the two; in TL two boys (K and M) stand between them, so TL is the pair that differs.