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1
There are three switches, but they are not labelled. Each switch corresponds to one of three light bulbs in a room. Each light bulb is either on or off. You can turn the lights on and off as many times as you want, but you can only enter the room one time. How can you figure out which switch corresponds to which light bulb?
A.Turn switch 1 to the 'on' position for 5 minutes, then turn it off. Turn switch 2 to the 'on' position and enter the room.
B.Turn switch 1 to the 'on' position for 5 minutes, then turn it off. Turn switch 3 to the 'on' position and enter the room.
C.Turn switch 1 to the 'on' position for 5 minutes, then turn it off. Turn switch 2 to the 'on' position and turn switch 3 to the 'on' position, then enter the room.
D.Turn switch 1 to the 'on' position for 5 minutes, then turn it off. Turn switch 2 to the 'on' position, turn switch 3 to the 'on' position, then turn switch 2 to the 'off' position and enter the room.
2
Complete the series: 93, 96, 99, 102, ?
A.103
B.105
C.108
D.111
Explanation: The series increases by 3.
3
Complete the series: 134, 137, 140, 143, ?
A.144
B.146
C.149
D.152
Explanation: The series increases by 3.
4
A group of friends want to share some apples in a particular ratio. If the ratio of apples shared between two friends is 2:3, and one friend gets 6 apples, how many apples will the other friend get?
A.6
B.8
C.9
D.12
5
Which of the following is a characteristic of a valid argument in logic?
A.The premises are false, but the conclusion is true
B.The premises are true, and the conclusion follows necessarily
C.The premises are false, and the conclusion is false
D.The premises are true, but the conclusion is false
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