PrepTest 39, Section 1, Question 15
Of the five Pohl children�Sara, Theo, Uma, Will, and Zoe�three are left-handed and two are right-handed. Each of the five children was born in a different one of seven calendar years, 1990 through 1996. The following conditions apply:
Of the five Pohl children�Sara, Theo, Uma, Will, and Zoe�three are left-handed and two are right-handed. Each of the five children was born in a different one of seven calendar years, 1990 through 1996. The following conditions apply:
Of the five Pohl children�Sara, Theo, Uma, Will, and Zoe�three are left-handed and two are right-handed. Each of the five children was born in a different one of seven calendar years, 1990 through 1996. The following conditions apply:
Of the five Pohl children�Sara, Theo, Uma, Will, and Zoe�three are left-handed and two are right-handed. Each of the five children was born in a different one of seven calendar years, 1990 through 1996. The following conditions apply:
No two left-handed children were born in consecutive years.
No two right-handed children were born in consecutive years.
Sara, who is left-handed, was born before Uma.
Zoe was born before both Theo and Will.
A left-handed child was born in 1991.
Uma, who is right-handed, was born in 1993.
If Theo was born after Will was born, then how many sequential orderings of the children, from firstborn to lastborn, are possible?
one
two
three
four
five
Explanations
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