IIT-JEE
Exam
One Indian and four American men and their wives are to be seated randomly around a circular table. Then the
conditional probability that the Indian man is seated adjacent to his wife given that each American man is seated
adjacent to his wife is
(A) 1/2 (B) 1/3
(C) 2/5 (D) 1/5
Read Solution (Total 0)
IIT-JEE Other Question
The number of distinct real values of λ, for which the vectors − λ^2ˆi + ˆj +ˆk , ˆi − λ2 ˆj +ˆk and ˆi + ˆj − λ2ˆk are
coplanar, is
(A) zero (B) one
(C) two (D) three
Let the vectors PQ, QR, RS, ST, TU
and UP
represent the sides of a regular hexagon.
STATEMENT -1 : PQ×(RS+ ST) ≠ 0
.
because
STATEMENT -2 : PQ×RS = 0
and PQ×ST ≠ 0
.
(A) Statement -1 is True, Statement -2 is True; Statement-2 is a correct explanation for Statement-1
(B) Statement -1 is True, Statement -2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C) Statement -1 is True, Statement -2 is False
(D) Statement -1 is False, Statement -2 is True