Examples of Arithmetic Reasoning Questions For SSC CGL

Q-9. Shruti has 52 pens. If Punam had 9 more than what she has now, she would have half as many as Shruti. How many pens are there with Punam now ?
(A) 17
(B) 15
(C) 26
(D) 35

View Answer and Solution 

Answer: (A) According to question
Solution:
Number of pens with Punam.
\frac{52}{2}-9  = 17

Q-10. 10¹¹ or 10¹⁰ which is the greeter number?
(A)Both are equal
(B) 10¹¹ > 11¹⁰
(C) 11¹⁰ > 10¹¹
(D) Cannot be determined without using tables

View Answer and Solution 

Answer: (B) 1011 > 1110
Solution:
The numbers with higher power will be greater. If there is only a difference of one  number between the power as well as base.
1011 = Ten zeros after 1

Q-11. There are 8 members in a friends group who greet each other on Deepawali day by sending cards. Count How many total greeting cards will be made by this group ?
(A) 50
(B) 64
(C) 56
(D) 60

View Answer and Solution 

Answer: (C) 56
Solution:
Number of greeting cards used
= 8 x 7 = 56

Q-12. A large sheet of paper is cut into two parts. The two parts are put together i.e. one above the other and will cut again into two parts. How many pieces will there be for 10 such cuttings ?
(A) 20
(B) 512
(C) 1024
(D) 2048

View Answer and Solution 

Answer: (C) 1024
Solution:
Required number of cuttings = AR n-1
A = 2 (initial parts after cutting)
R = 2 (part putting one on one)
n = 10 (number of cut)
AR n-1 = 2 x 2 10-1
= 2 x 29 = 1024  

Q-13. The population of a city doubles every 7 years. In 2009 the population was 12483. By which year the population increases by 49932?
(A) 2016
(B) 2023
(C) 2030
(D) 2037

View Answer and Solution 

Answer: (C) 2030
Solution:
In 2016 the population would be = 12483 x 2 = 24996
In 2023, the population would be = 24996 x 2 = 49932
In 2030, the population would be = 49932 x 2 = 99864
Therefore,
Population In 2023 = 49932
After 7 year 
Population In 2030 = 49932 x 2
So, on 2030 year  population increases by 49932

Q-14. A Bible has 400 pages and each page has 30 lines of 20 words each. How many Total words are printed there in the book ?
(A) 24000
(B) 470000
(C) 34000
(D) 240000

View Answer and Solution 

Answer: (D) 240000
Solution: 
Total number of words
= 400 x 30 x 20
= 240000