Logical Reasoning :: Number Series Test - 2

1.Look at this series: 80, 10, 70, 15, 60, ... What number should come next?

1. 20
2.25
3. 29
4. 80

... Answer is 1)
Explanation:This is an alternating addition and subtraction series. In the first pattern, 10 is subtracted from each number to arrive at the next. In the second, 5 is added to each number to arrive at the next.

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

1.7
2. 12
3.10
4. 13

... Answer is 3)
Explanation: This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.

3.Look at this series: 2, 6, 18, 54, ... What number should come next?

1. 200
2. 162
3. 123
4. 160

... Answer is 2)
Explanation: This is a simple multiplication series. Each number is 3 times more than the previous number.

4.Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?

1. 3.9
2. 3.0
3. 3.6
4. 2.6

... Answer is 3)
Explanation: In this simple subtraction series, each number decreases by 0.4.

5. Look at this series: 8, 6, 9, 23, 87 , ... What number should come next?

1. 429
2. 125
3. 270
4. 536

... Answer is 1)
Explanation: 8 x 1 - 2 = 6 6 x 2 - 3 = 9 9 x 3 - 4 = 23 23 x 4 - 5 = 87 87 x 5 - 6 = 429 ...

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