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Olympiad Test: Number Series - 2 - Class 7 MCQ


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15 Questions MCQ Test Mathematics Olympiad Class 7 - Olympiad Test: Number Series - 2

Olympiad Test: Number Series - 2 for Class 7 2024 is part of Mathematics Olympiad Class 7 preparation. The Olympiad Test: Number Series - 2 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Number Series - 2 MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Number Series - 2 below.
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Olympiad Test: Number Series - 2 - Question 1

Direction: 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, What number should fill the blank?

Detailed Solution for Olympiad Test: Number Series - 2 - Question 1

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 - 2 - Question 2

Direction: 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 - 2 - Question 2

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

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Olympiad Test: Number Series - 2 - Question 3

Direction: 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 - 2 - Question 3

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 - 2 - Question 4

Direction: 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 - 2 - Question 4

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

Olympiad Test: Number Series - 2 - Question 5

Direction: 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 - 2 - Question 5

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 - 2 - Question 6

Direction: 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 - 2 - Question 6

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

Olympiad Test: Number Series - 2 - Question 7

Direction: 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 - 2 - Question 7

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

Olympiad Test: Number Series - 2 - Question 8

Direction: 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 - 2 - Question 8

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

Olympiad Test: Number Series - 2 - Question 9

Direction: 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 - 2 - Question 9

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 - 2 - Question 10

Direction: 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 - 2 - Question 10

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

Olympiad Test: Number Series - 2 - Question 11

Direction: 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.
6, 17, 39, 72, __

Detailed Solution for Olympiad Test: Number Series - 2 - Question 11

The pattern is + 11, + 22, + 33, .....
So, missing term = 72 + 44 = 116

Olympiad Test: Number Series - 2 - Question 12

Direction: 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.
20, 20, 19, 16, 17, 13, 14, 11, __, __

Detailed Solution for Olympiad Test: Number Series - 2 - Question 12

Let the missing terms of the series be x1 and x2.
Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11, x1 x2 is a combination of two series: I. 20, 19, 17, 14, x1 and II. 20, 16, 13, 11, x2 The pattern in I is – 1, – 2, – 3,......So, missing term, x1 = 14 - 4 = 10.
The pattern in II is – 4, – 3, – 2,......So, missing term, x2 = 11 – 1 = 10.

Olympiad Test: Number Series - 2 - Question 13

Direction: 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.
24, 60, 120, 210, __

Detailed Solution for Olympiad Test: Number Series - 2 - Question 13

The pattern is + 36, + 60, + 90, ..... i.e. + [6 × (6 + 0)], + [6 × (6 + 4)], + [6 × (6 + 9)],...
So, missing term = 210 + [6 × (6 + 15)] = 210 + 126 = 336

Olympiad Test: Number Series - 2 - Question 14

Direction: 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.
625, 5, 125, 25, 25, __, 5

Detailed Solution for Olympiad Test: Number Series - 2 - Question 14

The given sequence is a combination of two series : I. 625, 125, 25, 5 and II. 5, 25, ?
The pattern in I is ÷ 5, while that in II is × 5. So, missing term = 25 × 5 = 125.

Olympiad Test: Number Series - 2 - Question 15

Direction: 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.
240, __, 120, 40, 10, 2

Detailed Solution for Olympiad Test: Number Series - 2 - Question 15

The pattern is ÷ 1, ÷ 2, ÷ 3, ÷ 4, ÷ 5.
So, missing term = 240 ÷ 1 = 240.

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