A Story of Numbers Class 8 MCQ

A Story of Numbers Class 8 MCQ

A Story of Numbers Class 8 MCQ

Question 1.

Which of the following represent number 23 in the decimal system ?

Solution:

Question 2.

The number 483 is written as in the roman numeral as:

(a) CCCCLXXXIII

(b) IDLXXXIII

(c) CDLXXXIII

(d) DCLXXXIII

Solution:

(c) CDLXXXIII

Question 3.

The Gumulgal name ukasar-ukasar- ukasar-ukasar-ukasar-urapon represents the number

(a) 7

(b) 10

(c) 11

(d) 12

Solution:

(c) 11

Question 4.

The number 1101 written in base-2 system represent the following number in decimal system:

(a) 10

(b) 11

(c) 12

(d) 13

Solution:

(d) 13

Question 5.

Chinese numeral represents the following number in decimal system :

(a) 5047

(b) 637

(c) 1042

(d) 142

Solution:

(b) 637

Case Study

Some numbers were written on the blackboard as shown in the Egyptian numerals :

Question (i).

Which of these numbers is the greatest ?

Solution:

Question (ii).

Which of these numbers is the smallest ?

Solution:

Question (iii)

is equal to

(a) 17

(b) 62

(c) 107

(d) 112

Solution:

(d) 112

Question (iv).

What is the sum of ∩∩| and | | ?

Solution:

23

Question (v).

What is the difference of ∩∩| and | | ?

Solution:

19

Created base-5 system : Landmark number of this system was written by the teacher on the blackboard.

Question (i).

In the decimal system, the number is equal to

(a) 123

(b) 153

(c) 148

(d) 138

Solution:

(d) 138

Question (ii).

What is the decimal equivalent to

Solution:

51

Question (iii).

What is the sum of

Solution:

28

Question (iv).

What is the sum of

Solution:

136

Question (v).

Which is greater '~~' or ‘↑’ ?

Solution:

↑