isi-entrance 2018 Q2

isi-entrance · India · UGA Combinations & Selection Combinatorial Probability
An office has 8 officers including two who are twins. Two teams, Red and Blue, of 4 officers each are to be formed randomly. What is the probability that the twins would be together in the Red team?
(A) $\frac { 1 } { 6 }$
(B) $\frac { 3 } { 7 }$
(C) $\frac { 1 } { 4 }$
(D) $\frac { 3 } { 14 }$
An office has 8 officers including two who are twins. Two teams, Red and Blue, of 4 officers each are to be formed randomly. What is the probability that the twins would be together in the Red team?\\
(A) $\frac { 1 } { 6 }$\\
(B) $\frac { 3 } { 7 }$\\
(C) $\frac { 1 } { 4 }$\\
(D) $\frac { 3 } { 14 }$