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## 20 Questions MCQ Test Science Olympiad Class 7 | Olympiad Test: Number Series

Olympiad Test: Number Series for Class 7 2023 is part of Science Olympiad Class 7 preparation. The Olympiad Test: Number Series questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Number Series MCQs are made for Class 7 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Number Series below.
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Olympiad Test: Number Series - Question 1

### Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces. 1000, 200, 40, __

Detailed Solution for Olympiad Test: Number Series - Question 1

This is a simple division series. Each number is divided by 5.

Olympiad Test: Number Series - Question 2

### Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces. 5.2, 4.8, 4.4, 4, __

Detailed Solution for Olympiad Test: Number Series - Question 2

In this simple subtraction series, each number decreases by 0.4.

Olympiad Test: Number Series - Question 3

### Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces. 2, 6, 18, 54, __

Detailed Solution for Olympiad Test: Number Series - Question 3

This is a simple multiplication series. Each number is 3 times more than the previous number.

Olympiad Test: Number Series - Question 4

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

80, 10, 70, 15, 60, _

Detailed Solution for Olympiad Test: Number Series - Question 4

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.

Olympiad Test: Number Series - Question 5

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

8, 43, 11, 41, __, 39, 17

Detailed Solution for Olympiad Test: Number Series - Question 5

This is a simple alternating addition and subtraction series. The first series begins with 8 and adds 3; the second begins with 43 and subtracts 2.

Olympiad Test: Number Series - Question 6

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

70, 71, 76, __, 81, 86, 70, 91

Detailed Solution for Olympiad Test: Number Series - Question 6

In this series, 5 is added to the previous number; the number 70 is inserted as every third number.

Olympiad Test: Number Series - Question 7

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

V, VIII, XI, XIV, __, XX,

Detailed Solution for Olympiad Test: Number Series - Question 7

This is a simple addition series; each number is 3 more than the previous number.

Olympiad Test: Number Series - Question 8

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

U32, V29, __, X23, Y20

Detailed Solution for Olympiad Test: Number Series - Question 8

In this series, the letters progress by 1; the numbers decrease by 3.

Olympiad Test: Number Series - Question 9

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

0.15, 0.3, ____, 1.2, 2.4

Detailed Solution for Olympiad Test: Number Series - Question 9

This is a simple multiplication series. Each number is 2 times greater than the previous number.

Olympiad Test: Number Series - Question 10

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

XXIV, XX, __, XII, VIII

Detailed Solution for Olympiad Test: Number Series - Question 10

This is a simple subtraction series; each number is 4 less than the previous number.

Olympiad Test: Number Series - Question 11

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

4, 7, 25, 10, __, 20, 16, 19,

Detailed Solution for Olympiad Test: Number Series - Question 11

Two series alternate here, with every third number following a different pattern. In the main series, 3 is added to each number to arrive at the next. In the alternating series, 5 is subtracted from each number to arrive at the next.

Olympiad Test: Number Series - Question 12

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

J14, L16, __, P20, R22

Detailed Solution for Olympiad Test: Number Series - Question 12

In this series, the letters progress by 2, and the numbers increase by 2.

Olympiad Test: Number Series - Question 13

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

VI, 10, V, 11, __, 12, III

Detailed Solution for Olympiad Test: Number Series - Question 13

This is an alternating addition and subtraction series. Roman numbers alternate with Arabic numbers. In the Roman numeral pattern, each number decreases by 1. In the Arabic numeral pattern, each number increases by 1.

Olympiad Test: Number Series - Question 14

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

(1/9), (1/3), 1, __ , 9

Detailed Solution for Olympiad Test: Number Series - Question 14

This is a multiplication series; each number is 3 times the previous number.

Olympiad Test: Number Series - Question 15

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

15, __, 27, 27, 39, 39

Detailed Solution for Olympiad Test: Number Series - Question 15

In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number.

Olympiad Test: Number Series - Question 16

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

72, 76, 73, 77, 74, __, 75

Detailed Solution for Olympiad Test: Number Series - Question 16

This series alternates the addition of 4 with the subtraction of 3.

Olympiad Test: Number Series - Question 17

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

10, 100, 200, 310, __

Detailed Solution for Olympiad Test: Number Series - Question 17

The pattern is + 90 + 100, + 110,.....
So, missing term = 310 + 120 = 430.

Olympiad Test: Number Series - Question 18

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

11, 10, __, 100, 1001, 1000, 10001

Detailed Solution for Olympiad Test: Number Series - Question 18

The pattern is – 1, × 10 + 1, –1, × 10 + 1, – 1, × 10 + 1, .....
So, missing term = 10 × 10 + 1 = 101

Olympiad Test: Number Series - Question 19

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

2, 7, 27, 107, 427, __

Detailed Solution for Olympiad Test: Number Series - Question 19

The pattern is + 5, + 20, + 80, + 320, ...... i.e. + (5 × 12), + (5 × 22), + (5 × 42), + (5 × 82),.....
So, missing term = 427 + (5 × 162) = 427 + 1280 = 1707

Olympiad Test: Number Series - Question 20

Directions: In each of the following questions, a number series is given with one missing term. Choose correct alternative that will continue the same pattern and fill in the blank spaces.

2, 3,8,27, 112,__

Detailed Solution for Olympiad Test: Number Series - Question 20

The pattern is × 1 + 1, × 2 + 2, × 3 + 3, × 4 + 4, .....
So, missing term = 112 × 5 + 5 = 565