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Olympiad Test: Number Ranking Test -2


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10 Questions MCQ Test Science Olympiad Class 7 | Olympiad Test: Number Ranking Test -2

Olympiad Test: Number Ranking Test -2 for Class 7 2023 is part of Science Olympiad Class 7 preparation. The Olympiad Test: Number Ranking Test -2 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Number Ranking Test -2 MCQs are made for Class 7 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Number Ranking Test -2 below.
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Olympiad Test: Number Ranking Test -2 - Question 1

Directions: Answer the questions based on the set of numbers given below.

687, 469, 158, 273, 894 

Q. Which of the following will be last digit of the highest number after the position of the digits in each number is reversed?

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

687, 469, 158, 273, 894
After reversing,
786, 964 , 851, 372, 498
Highest number = 964
Last digit = 4

Olympiad Test: Number Ranking Test -2 - Question 2

Directions: Answer the questions based on the set of numbers given below.

687, 469, 158, 273, 894 

Q. Which of the following is the first digit of the highest number when first and third digits in the given numbers are interchanged?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 2

786, 96 4 , 851, 372, 498. 
Highest number = 964.
First digit = 9. 

Olympiad Test: Number Ranking Test -2 - Question 3

Directions: Answer the questions based on the set of numbers given below.

687, 469, 158, 273, 894 

Q. What will be the difference between the first digit of the highest number as well as of the lowest number after the position of the first two digit in each number are reversed?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 3

867, 649, 518, 723, 984
First digit of 984 = 9
First digit of 518 = 5
Difference = 9 – 5 = 4 

Olympiad Test: Number Ranking Test -2 - Question 4

Directions: Answer the questions based on the set of numbers given below.

687, 469, 158, 273, 894 

Q. Which of the following is the last digit of the second highest number after the position of the digits in each number is reversed?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 4

964, 851, 786, 498, 372
Second highest number = 851

Olympiad Test: Number Ranking Test -2 - Question 5

Directions: Answer the questions based on the set of numbers given below.
687, 469, 158, 273, 894

Q. Which of the following is the second digit of the third number from the top when they are arranged in descending order, after the first digit in each number is changed to its next higher digit?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 5

867, 649, 518, 723, 984.
The number in descending order
984, 867, 723, 649, 518
3rd number from top = 723

Olympiad Test: Number Ranking Test -2 - Question 6

A class of students stand in a single line.Mukesh’s position is 26th from both the ends. How many students are there in the class?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 6

Number of students = 25 + 1 + 25 = 51

Olympiad Test: Number Ranking Test -2 - Question 7

Sunil ranks 24th in a class of 67students. What is his rank from the last?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 7

67 – 24 = 43
So, Sunil’s rank is 44th from the last. 

Olympiad Test: Number Ranking Test -2 - Question 8

Rohan is 12 ranks ahead of Ranjan in a class of 57. If Ranjan’s rank is 23 from the last, what is Rohan’s rank from the start?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 8

Ranjan’s rank is 23rd from the last and Rohan is 12 ranks ahead of Ranjan.
No. of students ahead of Rohan
= 57 – (23 + 12) 
= 57 – 35 = 22
So, Rohan is 23rd from start. 

Olympiad Test: Number Ranking Test -2 - Question 9

Jatin is 17th from the right end in a row of 60 students. What is his position from left end?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 9

Number of students towards the left of Jatin
= 60 – 17 = 43.
Jatin’s position from left = 43 + 1 = 44th 

Olympiad Test: Number Ranking Test -2 - Question 10

How many numbers from 21 to 100 are there which are exactly divisible by 7 but not by 3?

Detailed Solution for Olympiad Test: Number Ranking Test -2 - Question 10

The numbers from 21 to 100 which are exactly divisible by 7 but not by 3 are 28, 35, 49, 56, 70, 77, 91, 98. 

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