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CLAST
TEST # 3
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2.
A survey of 100
persons revealed that 72 of them had eaten at restaurant R
and 52 of them had
eaten at restaurant S. What is the smallest
possible number of people who could have eaten at both
R and S?
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A) 12
B) 24
C) 36
D) 48
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Solution:
If 72 persons (of 100) had eaten at restaurant
R, then 100 - 72 = 28 ate at restaurant
S
If 52 persons had eaten at restaurant S,
then 52 - 28 = 24 ate at both R and S
restaurant.
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Answer:
B)
24 |
Copyright © 2004 by
Selva Software, Inc.
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