Arithmetic Aptitude MCQ & Objective Questions
Arithmetic Aptitude is a crucial component of many school and competitive exams in India. Mastering this subject not only enhances your mathematical skills but also boosts your confidence in tackling objective questions. Regular practice with MCQs and practice questions helps you identify important questions and improves your exam preparation, ensuring you score better in your assessments.
What You Will Practise Here
Basic arithmetic operations: addition, subtraction, multiplication, and division
Fractions and decimals: conversion and operations
Percentage calculations: increase, decrease, and comparisons
Ratio and proportion: understanding and application
Averages: calculating and interpreting data
Simple and compound interest: formulas and problem-solving
Time, speed, and distance: concepts and related problems
Exam Relevance
Arithmetic Aptitude is a significant topic in various examinations, including CBSE, State Boards, NEET, and JEE. Students can expect questions that test their understanding of basic concepts, calculations, and problem-solving abilities. Common question patterns include direct application of formulas, word problems, and data interpretation, making it essential to practice thoroughly.
Common Mistakes Students Make
Misunderstanding the question requirements, leading to incorrect answers.
Overlooking the order of operations in complex calculations.
Confusing percentages with fractions, resulting in calculation errors.
Neglecting to convert units properly in time, speed, and distance problems.
Failing to apply the correct formula for interest calculations.
FAQs
Question: What are some effective strategies for solving Arithmetic Aptitude MCQs?Answer: Practice regularly, understand the underlying concepts, and familiarize yourself with different question types to enhance your speed and accuracy.
Question: How can I improve my speed in solving Arithmetic Aptitude questions?Answer: Time yourself while practicing and focus on shortcuts and tricks that can simplify calculations.
Start your journey towards mastering Arithmetic Aptitude today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Your success is just a question away!
Q. What is the value of log2(8) + log2(4)?
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Solution
log2(8) = 3 and log2(4) = 2, so 3 + 2 = 5.
Correct Answer:
B
— 4
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Q. What is the value of log3(81)?
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Solution
log3(81) = log3(3^4) = 4.
Correct Answer:
C
— 4
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Q. What is the value of log4(16)?
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Solution
log4(16) = log4(4^2) = 2.
Correct Answer:
B
— 2
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Q. What is the value of log5(25)?
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Solution
log5(25) = log5(5^2) = 2.
Correct Answer:
B
— 2
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Q. What is the value of log7(49)?
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Solution
log7(49) = log7(7^2) = 2.
Correct Answer:
B
— 2
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Q. What will be the amount on a principal of $1000 after 2 years at an annual compound interest rate of 5%?
A.
$1102.50
B.
$1050.00
C.
$1200.00
D.
$1150.00
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Solution
Amount = P(1 + r)^n = 1000(1 + 0.05)^2 = 1000(1.1025) = $1102.50
Correct Answer:
A
— $1102.50
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Q. What will be the compound interest on $1500 for 4 years at a rate of 10% per annum?
A.
$600
B.
$700
C.
$800
D.
$900
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Solution
CI = A - P; A = P(1 + r)^n = 1500(1 + 0.10)^4 = 1500(1.4641) = $2196.15, CI = 2196.15 - 1500 = $696.15.
Correct Answer:
C
— $800
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Q. What will be the compound interest on $2500 at a rate of 7% per annum for 2 years?
A.
$362.50
B.
$350.00
C.
$375.00
D.
$400.00
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Solution
Compound Interest = 2500(1 + 0.07)^2 - 2500 = 2500(1.1449) - 2500 = 2862.25 - 2500 = 362.50
Correct Answer:
A
— $362.50
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Q. What will be the compound interest on $2500 at a rate of 7% per annum for 3 years?
A.
$577.50
B.
$600.00
C.
$550.00
D.
$525.00
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Solution
Compound Interest = 2500(1 + 0.07)^3 - 2500 = 2500(1.225043) - 2500 = 3062.61 - 2500 = 577.50
Correct Answer:
A
— $577.50
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Q. What will be the compound interest on $3000 at a rate of 7% per annum for 2 years?
A.
$450.00
B.
$420.00
C.
$480.00
D.
$500.00
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Solution
Compound Interest = 3000(1 + 0.07)^2 - 3000 = 3000(1.1449) - 3000 = 434.70, rounded to $420.00
Correct Answer:
B
— $420.00
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Q. What will be the compound interest on $4000 at an annual interest rate of 9% for 2 years?
A.
$720.00
B.
$800.00
C.
$900.00
D.
$850.00
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Solution
Compound Interest = 4000(1 + 0.09)^2 - 4000 = 4000(1.1881) - 4000 = 752.40
Correct Answer:
B
— $800.00
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Q. What will be the compound interest on $8000 at a rate of 5% per annum for 2 years?
A.
$816.00
B.
$800.00
C.
$850.00
D.
$900.00
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Solution
Compound Interest = P(1 + r/n)^(nt) - P = 8000(1 + 0.05/1)^(1*2) - 8000 = 8000(1.1025) - 8000 = 816.00
Correct Answer:
A
— $816.00
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Q. What will be the compound interest on $8000 at an interest rate of 5% per annum for 2 years?
A.
$816.00
B.
$800.00
C.
$850.00
D.
$900.00
Show solution
Solution
Compound Interest = P(1 + r/n)^(nt) - P = 8000(1 + 0.05/1)^(1*2) - 8000 = 8000(1.1025) - 8000 = 816.00
Correct Answer:
A
— $816.00
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Q. What will be the compound interest on $8000 at an interest rate of 8% per annum for 3 years?
A.
$2000.00
B.
$2005.12
C.
$2040.00
D.
$2050.00
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Solution
Compound Interest = P(1 + r/n)^(nt) - P = 8000(1 + 0.08/1)^(1*3) - 8000 = 8000(1.259712) - 8000 = 2005.12
Correct Answer:
B
— $2005.12
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Q. What will be the compound interest on an amount of $2000 at an annual interest rate of 5% for 3 years?
A.
$315.25
B.
$300.00
C.
$250.00
D.
$200.00
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Solution
Compound Interest = P(1 + r/n)^(nt) - P = 2000(1 + 0.05/1)^(1*3) - 2000 = 2000(1.157625) - 2000 = 315.25
Correct Answer:
A
— $315.25
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Q. What will be the simple interest on a principal of $2500 at a rate of 7% per annum for 4 years?
A.
$700
B.
$800
C.
$900
D.
$1000
Show solution
Solution
Simple Interest = 2500 × 7 × 4 / 100 = $700.
Correct Answer:
A
— $700
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Q. What will be the simple interest on a principal of $2500 at a rate of 8% per annum for 4 years?
A.
$600
B.
$800
C.
$700
D.
$500
Show solution
Solution
Simple Interest = (2500 * 8 * 4) / 100 = $800.
Correct Answer:
C
— $700
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Q. What will be the total amount after 4 years if $1000 is invested at a simple interest rate of 6% per annum?
A.
$1200
B.
$1400
C.
$1600
D.
$1800
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Solution
Total Amount = Principal + Simple Interest = 1000 + (1000 × 6 × 4 / 100) = $1240.
Correct Answer:
B
— $1400
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Q. Which decimal represents 7/10?
A.
0.5
B.
0.7
C.
0.8
D.
0.9
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Solution
7/10 equals 0.7.
Correct Answer:
B
— 0.7
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Q. Which number does not belong in the series: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 300?
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Solution
All numbers except 300 are Fibonacci numbers. 300 is the odd one out.
Correct Answer:
D
— 300
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Q. Which number does not belong in the series: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55?
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Solution
The first '1' is repeated; all other numbers are unique Fibonacci numbers.
Correct Answer:
A
— 1
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Q. Which number does not belong in the series: 12%, 15%, 18%, 21%, 24%?
A.
12%
B.
15%
C.
18%
D.
21%
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Solution
21% is the odd one out as it breaks the pattern of increasing by 3%.
Correct Answer:
D
— 21%
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Q. Which number does not belong in the series: 5, 10, 20, 30, 40?
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Solution
All numbers except 5 are multiples of 10. 5 is the odd one out.
Correct Answer:
A
— 5
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Q. Which number does not belong: 25%, 50%, 75%, 80%, 100%?
A.
25%
B.
50%
C.
75%
D.
80%
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Solution
80% is the odd one out as it does not fit the pattern of multiples of 25%.
Correct Answer:
D
— 80%
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Q. Which number does not fit in the series: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512?
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Solution
All numbers are powers of 2 except 10, which is not a power of 2.
Correct Answer:
D
— 10
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Q. Which number does not fit in the series: 1, 3, 6, 10, 15, 21, 28, 36, 50?
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Solution
All numbers except 50 are triangular numbers. 50 is the odd one out.
Correct Answer:
C
— 50
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Q. Which number does not fit in the series: 2, 3, 5, 7, 11, 13, 15?
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Solution
All numbers except 15 are prime numbers. 15 is the odd one out.
Correct Answer:
D
— 15
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Q. Which number is different in the series: 9, 18, 27, 36, 45, 54, 63?
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Solution
All numbers except 9 are multiples of 9. 9 is the odd one out.
Correct Answer:
A
— 9
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Q. Which number is the odd one out in the series: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100?
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Solution
All numbers are perfect squares except 1, which is not considered a perfect square in this context.
Correct Answer:
A
— 1
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Q. Which number is the odd one out in the series: 10, 20, 30, 40, 50, 60, 70, 80, 90, 95?
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Solution
All numbers except 95 are multiples of 10. 95 is not a multiple of 10.
Correct Answer:
D
— 95
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