Olympiad Test: Number Ranking Test - 2

# Olympiad Test: Number Ranking Test - 2

Test Description

## 20 Questions MCQ Test Mathematics Olympiad Class 7 | Olympiad Test: Number Ranking Test - 2

Olympiad Test: Number Ranking Test - 2 for Class 7 2023 is part of Mathematics 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

### Direction: Study the following five numbers and answer the questions given below: 617, 325, 639, 841, 592  Q. What will be the middle digit of 2nd lowest number after the position of only the first and second digits within each number are interchanged?

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

167, 235, 369, 481, 952
2nd lowest number = 235
Middle digit = 3

Olympiad Test: Number Ranking Test - 2 - Question 2

### Direction: Study the following five numbers and answer the questions given below: 617, 325, 639, 841, 592  Q. What will be the first digit of the second number from top when they are arranged in descending order after reversing the position of digits within each number?

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

936, 716, 523, 295, 148 Second number from top = 716.

Olympiad Test: Number Ranking Test - 2 - Question 3

### What will be the difference between the sum of odd digits and the sum of even digits in the number 98675321?

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

Sum of odd digits = 9 + 7 + 5 + 3 + 1 = 25
Sum of even digits = 8 + 6 + 2 = 16
Difference = 25 – 16 = 9

Olympiad Test: Number Ranking Test - 2 - Question 4

A number is greater than 5 but less than 8. Also it is greater than 6 but less than 10. What is that number?

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

Let the number be x.
5 < x < 8
6 < x < 10
From these two; x = 7

Olympiad Test: Number Ranking Test - 2 - Question 5

Find the difference of largest number and smallest number formed by the digit 2, 3, 7, 9.

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

Largest number = 9732
Smallest number = 2379
Difference = 9732 – 2379 = 7353

Olympiad Test: Number Ranking Test - 2 - Question 6

Direction: 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 6

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 7

Direction: 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 7

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

Olympiad Test: Number Ranking Test - 2 - Question 8

Direction: 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 8

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 9

Direction: 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 9

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

Olympiad Test: Number Ranking Test - 2 - Question 10

Direction: 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 10

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 11

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 11

Number of students = 25 + 1 + 25 = 51

Olympiad Test: Number Ranking Test - 2 - Question 12

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 12

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

Olympiad Test: Number Ranking Test - 2 - Question 13

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 13

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

Olympiad Test: Number Ranking Test - 2 - Question 14

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 14

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 15

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 15

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.

Olympiad Test: Number Ranking Test - 2 - Question 16

How many numbers from 11 to 100 are there which are exactly divisible by 8 but not by 6?

Detailed Solution for Olympiad Test: Number Ranking Test - 2 - Question 16

16, 32, 40, 56, 64, 80, 88, 96
No. of numbers which are divisible by 8 but not by 6 between 11 to 100 = 8

Olympiad Test: Number Ranking Test - 2 - Question 17

How many combination of two digit numbers having 6 can be made from the following numbers?
​5, 9, 6, 7, 1, 8

Detailed Solution for Olympiad Test: Number Ranking Test - 2 - Question 17

The two – digit numbers having 6 are 16, 61, 56, 65, 66, 76, 67, 86, 68, 96, 69.

Olympiad Test: Number Ranking Test - 2 - Question 18

If the numbers from 11 to 100 which are exactly divisible by 6 are arranged in ascending order minimum number being on the top which would come at the ninth place from the top?

Detailed Solution for Olympiad Test: Number Ranking Test - 2 - Question 18

Numbers from 11 to 100, which are divisible by 6 are 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96.

Olympiad Test: Number Ranking Test - 2 - Question 19

Sukesh and Rajesh are ranked 6th and 13th respectively from the top in a class of 71 students. What will be their respective position from the bottom in the class?

Detailed Solution for Olympiad Test: Number Ranking Test - 2 - Question 19

Number of students behind Sukesh
= 71 – 6 = 65
Sukesh is 66th from bottom.
∴ Number of students behind Rajesh
= 71 – 13
= 58
Rajesh is 59th from bottom.

Olympiad Test: Number Ranking Test - 2 - Question 20

Sujata is 8 ranks ahead of Sunita who ranks 23rd in a class of 50 students. What is Sujata’s rank from the last?

Detailed Solution for Olympiad Test: Number Ranking Test - 2 - Question 20

Sunita ranks 23rd and Sujata is 8 ranks ahead of Sunita.
So, Sujata ranks = 23 – 8 = 15th
∴ Number of students behind Sujata in rank
= 50 – 15 = 35
Sujata rank’s from last = 36th.