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Number System Aptitude Questions and Answers:
Overview:
Questions and Answers Type:
MCQ (Multiple Choice Questions).
Main Topic:
Quantitative Aptitude.
Quantitative Aptitude Sub-topic:
Number System Aptitude Questions and Answers.
Number of Questions:
10 Questions with Solutions.
Find the factors of composite number \(500\)?
\(12\)
\(6\)
\(9\)
\(10\)
Answer & Solution
Answer: (a) \(12\)Solution: \(500 = 2 \times 2 \times 5 \times 5 \times 5 = 2^2 \times 5^3\) \(factors \ of \ composite \ number\) \(= (2 + 1) \ (3 + 1) = 3 \times 4 = 12\)
Find the factors of composite number \(300\)?
\(12\)
\(18\)
\(14\)
\(10\)
Answer & Solution
Answer: (b) \(18\)Solution: \(300 = 2 \times 2 \times 3 \times 5 \times 5 = 2^2 \times 3^1 \times 5^2\) \(factors \ of \ composite \ number\) \(= (2 + 1) \ (1 + 1) \ (2 + 1) = 3 \times 2 \times 3 = 18\)
Find the factors of composite number \(700\)?
\(16\)
\(20\)
\(19\)
\(18\)
Answer & Solution
Answer: (d) \(18\)Solution: \(700 = 2 \times 2 \times 5 \times 5 \times 7 = 2^2 \times 5^2 \times 7^1\) \(factors \ of \ composite \ number\) \(= (2 + 1) \ (2 + 1) \ (1 + 1) = 3 \times 3 \times 2 = 18\)
Find the factors of composite number \(450\)?
\(18\)
\(16\)
\(19\)
\(15\)
Answer & Solution
Answer: (a) \(18\)Solution: \(450 = 2 \times 3 \times 3 \times 5 \times 5 = 2^1 \times 3^2 \times 5^2\) \(factors \ of \ composite \ number\) \(= (1 + 1) \ (2 + 1) \ (2 + 1) = 2 \times 3 \times 3 = 18\)
Find the factors of composite number \(600\)?
\(20\)
\(26\)
\(24\)
\(28\)
Answer & Solution
Answer: (c) \(24\)Solution: \(600 = 2 \times 2 \times 2 \times 3 \times 5 \times 5 = 2^3 \times 3^1 \times 5^2\) \(factors \ of \ composite \ number\) \(= (3 + 1) \ (1 + 1) \ (2 + 1) = 4 \times 2 \times 3 = 24\)
Find all the factors of composite number \(1610\)?
\(15\)
\(16\)
\(18\)
\(12\)
Answer & Solution
Answer: (b) \(16\)Solution: \(1610 = 2 \times 5 \times 7 \times 23 = 2^1 \times 5^1 \times 7^1 \times 23^1\) \(factors \ of \ composite \ number\) \(= (1 + 1) \ (1 + 1) \ (1 + 1) \ (1 + 1)\)\(= 2 \times 2 \times 2 \times 2 = 16\)
Find the factors of composite number \(1830\)?
\(10\)
\(14\)
\(12\)
\(16\)
Answer & Solution
Answer: (d) \(16\)Solution: \(1830 = 2 \times 3 \times 5 \times 61 = 2^1 \times 3^1 \times 5^1 \times 61^1\) \(factors \ of \ composite \ number\) \(= (1 + 1) \ (1 + 1) \ (1 + 1) \ (1 + 1)\)\(= 2 \times 2 \times 2 \times 2 = 16\)
Find the factors of composite number \(19\)?
\(4\)
\(3\)
\(2\)
\(1\)
Answer & Solution
Answer: (c) \(2\)Solution: \(19\) is a prime number and any prime number have only two factors \(1\) and itself.
Find all the factors of composite number \(4000\)?
\(18\)
\(24\)
\(26\)
\(16\)
Answer & Solution
Answer: (b) \(24\)Solution: \(4000\)\(= 2 \times 2 \times 2 \times 2 \times 2 \times 5 \times 5 \times 5\)\(= 2^5 \times 5^3\) \(factors \ of \ composite \ number\) \(= (5 + 1) \ (3 + 1) = 6 \times 4 = 24\)
Find the factors of composite number \(29\)?
\(5\)
\(3\)
\(1\)
\(2\)
Answer & Solution
Answer: (d) \(2\)Solution: \(29\) is a prime number and any prime number have only two factors \(1\) and itself.
Number System
Number System Aptitude Questions and Answers
Lec 1: Introduction to Number System
Lec 2: Factors of Composite Number
Questions and Answers-1
Lec 3: Basic Remainder Theorem
Questions and Answers-2
Lec 4: Polynomial Remainder Theorem
Questions and Answers-3
Questions and Answers-4
Questions and Answers-5
Lec 5: LCM of Numbers
Questions and Answers-6
Lec 6: HCF of Numbers
Questions and Answers-7
Questions and Answers-8
Lec 7: Divisibility Rules of Numbers
Questions and Answers-9
Questions and Answers-10
Questions and Answers-11
Questions and Answers-12
Questions and Answers-13
Questions and Answers-14
Questions and Answers-15
Questions and Answers-16
Questions and Answers-17
Questions and Answers-18
Questions and Answers-19
Questions and Answers-20
Quantitative Aptitude Topics
Number Sysytem
Simplification
Percentage
Simple Interest and Compound Interest
Profit and Loss
Ratio and Proportion
Time and Work
Time, Speed and Distance
Average
Probability
Permutation and Combination
Equations and Inequalities
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International Treaties
Indian Organizations
Mathematics
Competitive Exams study material
Quantitative Aptitude
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Logical Reasoning
Verbal Reasoning
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