Important Questions Test: Number Series- 1

# Important Questions Test: Number Series- 1

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## 10 Questions MCQ Test Logical Reasoning (LR) and Data Interpretation (DI) | Important Questions Test: Number Series- 1

Important Questions Test: Number Series- 1 for Railways 2023 is part of Logical Reasoning (LR) and Data Interpretation (DI) preparation. The Important Questions Test: Number Series- 1 questions and answers have been prepared according to the Railways exam syllabus.The Important Questions Test: Number Series- 1 MCQs are made for Railways 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Number Series- 1 below.
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Important Questions Test: Number Series- 1 - Question 1

### Look at this series: 4, 6, 12, 30, 90,  ?, 1260. What number should come?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 1

Logic is:

► 4 × 1.5 = 6,
► 6 × 2 = 12,
► 12 × 2.5 = 30,
► 30 × 3 = 90,
► 90 × 3.5 = 315,
► 315 × 4 = 1260.

Important Questions Test: Number Series- 1 - Question 2

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

Detailed Solution for Important Questions Test: Number Series- 1 - Question 2

This is a simple alternating addition and subtraction series.

In the first pattern, 3 is added. In the second, 2 is subtracted.

► 7 + 3 = 10,
► 10 - 2 = 8,
► 8 + 3 = 11,
► 11 - 2 = 9,
► 9 + 3 = 12,
► 12 - 2 = 10.

Important Questions Test: Number Series- 1 - Question 3

### Look at this series: 6, 12, 48, 264,1560...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 3 Important Questions Test: Number Series- 1 - Question 4

Look at this series: 3, 4, 7, 8, 11, 12,...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 4

This alternating addition series begins with 3.
► Then 1 is added to give 4,
► Then 3 is added to give 7,
► Then 1 is added to give 8,
► Then 3 is added to give 11,
► Then 1 is added to give 12,
► Then 3 is added to give 15.

Important Questions Test: Number Series- 1 - Question 5

Look at this series: 4, 11, 19, 41, ?, 161...so on. What number should come?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 5

Pattern:

► 4 × 2 + 3 = 11,
► 11 × 2 – 3 = 19,
► 19 × 2 + 3 = 41,
► 41 × 2 – 3 = 79,
► 79 × 2 + 3 = 161.

Important Questions Test: Number Series- 1 - Question 6

Look at this series: 53, 53, 40, 40, 27, 27,...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 6

A number is repeated. Then it is reduced by 13 and the result is repeated.

► The next number is 27-13=14.

Important Questions Test: Number Series- 1 - Question 7

Look at this series: 8, 22, 8, 28, 8,...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 7

This is a simple addition series with a random number, 8, interpolated as every other number.

In the series, 6 is added to each number except 8, to arrive at the next number.

► 22 + 6 = 28,
► 28 + 6 = 34.

Important Questions Test: Number Series- 1 - Question 8

Look at this series: 1, 3, 6, 10, 15...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 8

It is a triangular number series forming a triangular pattern.

► 1 = 1,
► 1+2 = 3,
► 1+2+3 = 6,
► 1+2+3+4 = 10,
► 1+2+3+4+5 = 15,
► 1+2+3+4+5+6 = 21.

Important Questions Test: Number Series- 1 - Question 9

Look at this series: 2, 1, (1/2), (1/4),...so on. What number should come next?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 9

This is a simple division series, each number is one-half of the previous number.

In other terms to say, the number is divided by 2 successively to get the next result.

► 4/2 = 2
► 2/2 = 1
► 1/2 = 1/2
► (1/2) / 2 = 1/4
► (1/4) / 2 = 1/8 and so on.

Important Questions Test: Number Series- 1 - Question 10

3, 9, 24, 57, ?, 267, 552. What number should come?

Detailed Solution for Important Questions Test: Number Series- 1 - Question 10 ## Logical Reasoning (LR) and Data Interpretation (DI)

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## Logical Reasoning (LR) and Data Interpretation (DI)

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