Decimals

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๐Ÿ“˜ Comprehensive Syllabus & Examination Guide

Decimals

Official curriculum roadmap, subject/topic distribution, negative marking rules, pacing guidelines, and solved sample questions.

๐ŸŽฏ Mapped Subjects & Topic Question Distribution

Total Question Pool 100%
8 MCQs
Combined Active Syllabus
Decimals
8 MCQs
Topic Pool
๐Ÿ“Š Question Pool Structure
8 MCQs across fundamental, intermediate, and advanced concept tiers.
โšก Recommended Pacing
45 to 60 seconds per MCQ. Flag complex problems and preserve 10 minutes for final revision.
โš–๏ธ Scoring & Negative Marking
+1 mark per correct answer. In competitive tests with negative marking, -0.25 applies for incorrect guesses.

๐Ÿ’ก Strategic Preparation & Exam Hall Guidelines

To maximize your score on Decimals, candidates are advised to follow a structured three-pass approach. In the First Pass, solve all direct recall and formula-based questions within 30 seconds each to secure foundational marks. In the Second Pass, tackle multi-step analytical and quantitative reasoning problems. In the Third Pass, review marked questions and verify calculations.

Practice with the interactive player below to evaluate your speed and accuracy under real exam pressure. Every question features full mathematical formulas, step-by-step worked solutions, and conceptual explanations vetted by Apex Rankers Academy subject matter specialists.

Ready to test your knowledge? Launch interactive 1-by-1 practice with instant feedback, bookmarking, and step-by-step rationales.
Solved Blueprint Examples

๐Ÿ“ Pre-Rendered Solved Sample Questions & Detailed Solutions

Showing 8 solved representative questions

Review the solved problems below to understand question phrasing, answer choices, and step-by-step solution logic prior to starting the full interactive practice drill:

Sample Question 1
Decimals Medium • Quantitative Aptitude Test
Solve the decimal addition: $2.31 + 3.21$
A 5.42
B 5.51
C 5.52
D 5.62
โœ“ Correct Answer: C - 5.52
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
Adding the decimal values directly: \[2.31 + 3.21 = 5.52\] Thus, the correct option is (C).
Sample Question 2
Decimals Medium • Quantitative Aptitude Test
Solve the decimal addition: $0.001 + 2.1$
A 2.11
B 2.101
C 2.011
D 3.1
โœ“ Correct Answer: B - 2.101
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
Align the numbers by the decimal point: \[2.100 + 0.001 = 2.101\] Thus, the correct option is (B).
Sample Question 3
Decimals Medium • Quantitative Aptitude Test
Solve the decimal subtraction: $2.5213 - 1.001$
A 1.5203
B 1.5212
C 1.5113
D 1.4203
โœ“ Correct Answer: A - 1.5203
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
Align the numbers by the decimal point: \[2.5213 - 1.0010 = 1.5203\] Thus, the correct option is (A).
Sample Question 4
Decimals Medium • Quantitative Aptitude Test
Calculate the product: $1.31 \times 0.3$
A 0.39
B 0.393
C 3.93
D 39.3
โœ“ Correct Answer: B - 0.393
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
First multiply $131 \times 3 = 393$. Since there are $2 + 1 = 3$ decimal places in total, place the decimal point $3$ places from the right: \[1.31 \times 0.3 = 0.393\] Thus, the correct option is (B).
Sample Question 5
Decimals Medium • Quantitative Aptitude Test
Calculate the product: $0.08 \times 0.2$
A 0.16
B 0.016
C 0.0016
D 1.6
โœ“ Correct Answer: B - 0.016
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
First multiply the whole numbers: $8 \times 2 = 16$. Next, count the total number of decimal places: $2 + 1 = 3$ decimal places. Therefore: \[0.08 \times 0.2 = 0.016\] Thus, the correct option is (B).
Sample Question 6
Decimals Medium • Quantitative Aptitude Test
Solve the decimal division: $\frac{0.08}{0.2}$
A 0.04
B 0.4
C 4
D 40
โœ“ Correct Answer: B - 0.4
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
Multiply numerator and denominator by $100$: \[\frac{0.08}{0.2} = \frac{8}{20} = \frac{4}{10} = 0.4\] Thus, the correct option is (B).
Sample Question 7
Decimals Medium • Quantitative Aptitude Test
Solve the decimal division: $\frac{0.002}{0.8}$
A 0.025
B 0.0025
C 0.00025
D 0.25
โœ“ Correct Answer: B - 0.0025
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
Multiply numerator and denominator by $1000$: \[\frac{0.002}{0.8} = \frac{2}{800} = \frac{1}{400} = 0.0025\] Thus, the correct option is (B).
Sample Question 8
Decimals Medium • Quantitative Aptitude Test
Solve the decimal division: $\frac{0.8}{0.002}$
A 4
A 4
A 4
A 4
A 4
B 40
B 40
B 40
B 40
B 40
C 400
C 400
C 400
C 400
C 400
D 4000
D 4000
D 4000
D 4000
D 4000
โœ“ Correct Answer: C - 400
๐Ÿ“– Step-by-Step Solution & Conceptual Rationale:
To divide decimals, multiply both numerator and denominator by $1000$ to eliminate the decimal points: \[\frac{0.8}{0.002} = \frac{0.8 \times 1000}{0.002 \times 1000} = \frac{800}{2} = 400\] Thus, the correct option is (C).
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