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22 Jan 2016, 10:18
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A school play requires 24 actors to be cast among boys, girls, and adults. If no actors may take two roles, how many adult actors are needed?
(1) The ratio of boys needed to girls is 2 to 1.
(2) The ratio of children needed to adults is 3 to 1.
(1) The ratio of boys needed to girls is 2 to 1.
(2) The ratio of children needed to adults is 3 to 1.
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22 Jan 2016, 12:25
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S1
The ratio of boys needed to girls is 2 to 1
no info on adult is given
Not suff
St2
The ratio of children needed to adults is 3 to 1
children = boys + girls
3:1 = 24
18+6=24
6 adults
Suff
Answer B
The ratio of boys needed to girls is 2 to 1
no info on adult is given
Not suff
St2
The ratio of children needed to adults is 3 to 1
children = boys + girls
3:1 = 24
18+6=24
6 adults
Suff
Answer B
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10 Jan 2017, 06:20
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Option B.
first statement only gives us the ratio of boys to girls - NS
second statement gives us the ratio of children to adults - solving we get the number of adults as 6 and children as 18.
Hence option B
first statement only gives us the ratio of boys to girls - NS
second statement gives us the ratio of children to adults - solving we get the number of adults as 6 and children as 18.
Hence option B
