Four Boys and Three Girls Are Seated, in a Row $\frac { 1 } { 7 }$

question 74

Multiple Choice

Four boys and three girls are seated, in a row, at random, to watch a play. What is the probability that
a) a girl is seated at each end of the row?
b) one of the boys is seated in the middle seat?
c) boys and girls are seated alternately?

• A) a) \(\frac { 1 } { 7 }\) b) \(\frac { 3 } { 7 }\) c) \(\frac { 1 } { 35 }\)
• B) a) \(\frac { 1 } { 7 }\) b) \(\frac { 4 } { 7 } \quad\) c) \(\frac { 1 } { 35 }\)
• C) a) \(\frac { 3 } { 7 }\) b) \(\frac { 4 } { 7 }\) c) \(\frac { 1 } { 7 }\)
• D) a) \(\frac { 2 } { 7 }\) b) \(\frac { 1 } { 7 } \quad\) c) \(\frac { 1 } { 35 }\)

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