model 1 basic number system Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 6 EXERCISES
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Basic Number System Aptitude Questions Practice Test with PDF »
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Number System on Divisibility Multiple Add Subtract Live Test »
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Top 255+ Number System Fraction Aptitude Questions Answers »
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Top +299 Aptitude Number System (Find Unit Place) Mcq Quiz »
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Top Number System Aptitude (Smallest Largest Fraction) MCQ »
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The following question based on number system topic of quantitative aptitude
(a) rational number
(b) natural number
(c) irrational number
(d) integer
The correct answers to the above question in:
Answer: (c)
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Read more basic number system Based Quantitative Aptitude Questions and Answers
Question : 1
The number $√3$ is
a) a finite decimal
b) an infinite recurring decimal
c) equal to 1.732
d) an infinite non-recurring decimal
Answer »Answer: (d)
Question : 2
There are just two ways in which 5 may be expressed as the sum of two different positive (non-zero) integers, namely 5 = 4 + 1 = 3 + 2. In how many ways, 9 can be expressed as the sum of two different positive (non-zero) integers?
a) 3
b) 4
c) 5
d) 6
Answer »Answer: (b)
9 = 1+8 = 2+7 = 3+6 = 4+5
So it can be expressed in 4 ways
Question : 3
P and Q are two positive integers such that PQ = 64. Which of the following cannot be the value of P + Q?
a) 16
b) 20
c) 35
d) 65
Answer »Answer: (c)
The possible combinations of (P, Q)
So that the product is 64 are
(1, 64), (2, 32), (4, 16) and (8, 8)
∴ P+Q cannot be 35
Question : 4
The number $π$ is
a) a fraction
b) a recurring decimal
c) a rational number
d) an irrational number
Answer »Answer: (d)
Pi ($π$) is an irrational number
π is an irrational number that has a value of 22/7 or 3.142…and is a never-ending and non-repeating number.
Irrational numbers are non-terminating
Question : 5
Every rational number is also
a) an integer
b) a real number
c) a natural number
d) a whole number
Answer »Answer: (b)
Both rational and irrational numbers taken together are called Real numbers.
Therefore, every real number is either a rational number or an irrational number. Hence, every rational number is a real number.
Hence, (B) is the correct option.
Question : 6
Consider the following statements about natural numbers: (1) There exists a smallest natural number. (2) There exists a largest natural number. (3) Between two natural numbers, there is always a natural number. Which of the above statements is/are correct?
a) None
b) Only 1
c) 1 and 2
d) 2 and 3
Answer »Answer: (b)
1) There exists the smallest natural number - which is 1. So, true.
2) There exists a largest natural number - there is no upper limit to numbers. So, false.
3) Between two natural numbers there is always a natural number - for example, between 1 and 2 there is no natural number. So, false.
Hence, only option 1 is true.
GET number system PRACTICE TEST EXERCISES
model 1 basic number system
model 2 divisibility, multiples, add and subtract based number system
model 3 fraction of numbers
model 4 finding unit place of a number
model 5 smallest and largest fraction/numbers
model 6 operations of consecutive numbers (odd, even, square, etc.)
number system Shortcuts and Techniques with Examples
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model 1 basic number system
Defination & Shortcuts … -
model 2 divisibility, multiples, add and subtract based number system
Defination & Shortcuts … -
model 3 fraction of numbers
Defination & Shortcuts … -
model 4 finding unit place of a number
Defination & Shortcuts … -
model 5 smallest and largest fraction/numbers
Defination & Shortcuts … -
model 6 operations of consecutive numbers (odd, even, square, etc.)
Defination & Shortcuts …
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