Logical Problems
 Look at this series: 7, 10, 8, 11, 9, 12, . . . . . What number should come next?

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This is a simple alternating addition and subtraction series.
Correct Option: B
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
 Look at this series: 1,000, 200, 40, . . . What number should come next?

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This is a simple division series. Each number is divided by 5.
Correct Option: A
This is a simple division series. Each number is divided by 5.
 Look at this series: 2, 6, 18, 54, ...... What number should come next?

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This is a simple multiplication series.
Correct Option: C
This is a simple multiplication series. Each number is 3 times more than the previous number.
 Look at this series : 53, 53, 40, 40, 27, 27,... What number should come next?

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In this series, each number is repeated,
Correct Option: B
In this series, each number is repeated, then 13 is subtracted to arrive at the next number.
 Look at this series: 21, 9, 21, 11, 21, 13,... What number should come next?

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In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise
Correct Option: C
In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.