Which decimal multiplier represents a decrease of 17.5%?

The remaining percentage is 100 − 17.5 = 82.5%, so the multiplier is 0.825.

Which is the correct ascending order of −0.48, −1/2 and −0.485?

−1/2 < −0.485 < −0.48. Write −1/2 as −0.500; for negative numbers, the one with the larger absolute value is smaller. Thus −0.500 < −0.485 < −0.480.

Evaluate (0.0048 × 0.075 × 1.6) ÷ (0.012 × 0.002).

Cancel in pairs: 0.0048/0.012 = 0.4 and 0.075/0.002 = 37.5; then 0.4 × 37.5 × 1.6 = 24.

Write 1.0(27), where 27 repeats, as a fraction in lowest terms.

The fractional part is 27/990 = 3/110, so the number is 1 + 3/110 = 113/110.

What is the decimal form of 23/125?

Multiply both numerator and denominator by 8: 23/125 = 184/1000 = 0.184.

A milk seller mixes 7.25 litres of milk with 2.75 litres of water and fills bottles of 0.4 litre each. How many full bottles are filled?

Total mixture = 7.25 + 2.75 = 10 litres; bottles = 10 ÷ 0.4 = 25.

How many of 0.43, 7/16, 0.44 and 4/9 lie strictly between 3/7 and 0.445?

3/7 is about 0.428571, while the four numbers are 0.43, 0.4375, 0.44 and about 0.444444. All four lie inside the interval.

Find x: (x + 3.75) ÷ 0.25 = 26.4.

x + 3.75 = 26.4 × 0.25 = 6.6, so x = 6.6 − 3.75 = 2.85.

What is 68.4 ÷ 10000?

Dividing by 10000 shifts the decimal point 4 places left: 68.4 ÷ 10000 = 0.00684.

Evaluate 12.48 × 0.25 + 6.24 × 0.5.

Multiplication by 0.25 means division by 4, so both terms equal 3.12; their sum is 6.24.

If x = 0.(36), where 36 repeats, find (1 + x) ÷ (1 − x).

x = 36/99 = 4/11; hence (1 + x)/(1 − x) = (15/11)/(7/11) = 15/7.

Which fraction is greater than 0.62 but less than 0.625?

28/45 = 0.62222 recurring, which lies strictly between 0.62 and 0.625.

Evaluate 0.125 × 48.

0.125 = 1/8, so 0.125 × 48 = 48 ÷ 8 = 6.

A bus travels 16.8 km on 1.2 litres of diesel. At the same rate, how many km will it travel on 3.5 litres?

Mileage = 16.8 ÷ 1.2 = 14 km per litre; distance = 14 × 3.5 = 49 km.

Find the positive value of x if (x + 0.4)² − (x − 0.4)² = 3.84.

Use (u + v)² − (u − v)² = 4uv: 1.6x = 3.84, so x = 2.4.

If 736 × 28 = 20608, find 0.0736 × 2.8.

The factors have a total of 5 decimal places, so 20608 becomes 0.20608.

If 6.04 = 6 + a/10 + b/100, where a and b are decimal digits, find a + b.

The tenths digit is a = 0 and the hundredths digit is b = 4; hence a + b = 4.

A 24.5 m ribbon is cut into 0.6 m pieces. Each cut wastes 0.01 m, and each usable piece needs one cut. What is the maximum number of full pieces?

Each piece uses 0.6 + 0.01 = 0.61 m. Since 40 × 0.61 = 24.4 and 41 × 0.61 = 25.01, the maximum is 40.

Evaluate (5.7 + 2.3) × 0.45 − 0.18 ÷ 0.06.

The sum in brackets is 8, so the expression becomes 3.6 − 3 = 0.6.

Which is the smallest of the following?

10/11 = 0.90909 recurring, which is slightly greater than 0.909; both 0.9099 and 0.91 are also greater.

A price of ₹640 is multiplied by 1.125. By how many rupees does it increase?

Only the extra multiplier matters: increase = 640 × (1.125 − 1) = 640 × 0.125 = ₹80.

A quotient is 0.072. If its dividend is multiplied by 100 and its divisor is divided by 10, what is the new quotient?

The quotient is multiplied by 100 × 10 = 1000, so the new quotient is 0.072 × 1000 = 72.

The sum of two positive numbers is 0.9 and their difference is 0.3. Find their product.

Product = [(sum)² − (difference)²]/4 = (0.9² − 0.3²)/4 = 0.18.

If p = 0.84, q = −0.31 and r = −0.53, find (p³ + q³ + r³) ÷ (pqr).

Since p + q + r = 0, the identity p³ + q³ + r³ = 3pqr gives a quotient of 3.

Topic

Decimal Fractions MCQ – Part 2 - Topic Guide and MCQs

Q: How long is the Decimal Fractions MCQ – Part 2 quiz?

Decimal Fractions MCQ – Part 2 runs 25 untimed questions - about 25 min at a steady pace. The set clears at 40% and you can retake it as often as you like.

Q: What kind of questions does Decimal Fractions MCQ – Part 2 ask?

The set answers that: each question carries four options and a full explanation, so you learn the wording an examiner uses, not just the fact behind it.

Q: Where else can I practise Quantitative Aptitude?

Open the quiz page above, or start from the Quantitative Aptitude subject page if you want to drill neighbouring lanes in the same sitting.

Q: Do my scores save?

Scores, bookmarks and streaks need the optional Google sign-in. Opening the set and answering questions does not.

Part of Quantitative Aptitude > 03 Decimal Fractions - 25 questions, about 25 min, with an explanation after every answer.

Question count

about 25 min

Estimated time

Mixed

Difficulty

03 Nov 2026

Last updated

Quick answer

Decimal Fractions MCQ – Part 2 is a topic inside Quantitative Aptitude (03 Decimal Fractions). It runs 25 untimed MCQs - roughly 25 min - and the review explains every answer once you submit.

Topic introduction

What Decimal Fractions MCQ – Part 2 covers

The shape of the set before you start it.

Decimal Fractions MCQ – Part 2 sits inside Quantitative Aptitude, under the 03 Decimal Fractions lane, and the portal keeps it as one self-contained set: 25 questions, four options each, no clock and a written explanation behind every answer.

Attempt it once to find the gaps, read why each distractor is wrong, then retake the same set a few days later. The questions you miss twice are the ones worth writing down.

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Question bank

Decimal Fractions MCQ – Part 2: all 25 questions

Read the question, pick an option, then open the answer.

Which decimal multiplier represents a decrease of 17.5%?
1. 0.9825
2. 0.175
3. 1.175
4. 0.825
Show answer

Answer: (D) 0.825

Explanation: The remaining percentage is 100 − 17.5 = 82.5%, so the multiplier is 0.825.
Which is the correct ascending order of −0.48, −1/2 and −0.485?
1. −0.48 < −0.485 < −1/2
2. −1/2 < −0.485 < −0.48
3. −0.485 < −1/2 < −0.48
4. −1/2 < −0.48 < −0.485
Show answer

Answer: (B) −1/2 < −0.485 < −0.48

Explanation: Write −1/2 as −0.500; for negative numbers, the one with the larger absolute value is smaller. Thus −0.500 < −0.485 < −0.480.
Evaluate (0.0048 × 0.075 × 1.6) ÷ (0.012 × 0.002).
1. 24
2. 240
3. 0.24
4. 2.4
Show answer

Answer: (A) 24

Explanation: Cancel in pairs: 0.0048/0.012 = 0.4 and 0.075/0.002 = 37.5; then 0.4 × 37.5 × 1.6 = 24.
Write 1.0(27), where 27 repeats, as a fraction in lowest terms.
1. 34/33
2. 127/110
3. 113/110
4. 1027/990
Show answer

Answer: (C) 113/110

Explanation: The fractional part is 27/990 = 3/110, so the number is 1 + 3/110 = 113/110.
What is the decimal form of 23/125?
1. 0.0184
2. 0.184
3. 1.84
4. 0.23
Show answer

Answer: (B) 0.184

Explanation: Multiply both numerator and denominator by 8: 23/125 = 184/1000 = 0.184.
A milk seller mixes 7.25 litres of milk with 2.75 litres of water and fills bottles of 0.4 litre each. How many full bottles are filled?
1. 40
2. 2.5
3. 20
4. 25
Show answer

Answer: (D) 25

Explanation: Total mixture = 7.25 + 2.75 = 10 litres; bottles = 10 ÷ 0.4 = 25.
How many of 0.43, 7/16, 0.44 and 4/9 lie strictly between 3/7 and 0.445?
1. 1
2. 2
3. 4
4. 3
Show answer

Answer: (C) 4

Explanation: 3/7 is about 0.428571, while the four numbers are 0.43, 0.4375, 0.44 and about 0.444444. All four lie inside the interval.
Find x: (x + 3.75) ÷ 0.25 = 26.4.
1. 2.85
2. 6.6
3. 10.35
4. 101.85
Show answer

Answer: (A) 2.85

Explanation: x + 3.75 = 26.4 × 0.25 = 6.6, so x = 6.6 − 3.75 = 2.85.
What is 68.4 ÷ 10000?
1. 0.00684
2. 0.000684
3. 0.684
4. 0.0684
Show answer

Answer: (A) 0.00684

Explanation: Dividing by 10000 shifts the decimal point 4 places left: 68.4 ÷ 10000 = 0.00684.
Evaluate 12.48 × 0.25 + 6.24 × 0.5.
1. 0.624
2. 3.12
3. 6.24
4. 9.36
Show answer

Answer: (C) 6.24

Explanation: Multiplication by 0.25 means division by 4, so both terms equal 3.12; their sum is 6.24.
If x = 0.(36), where 36 repeats, find (1 + x) ÷ (1 − x).
1. 7/15
2. 15/11
3. 11/7
4. 15/7
Show answer

Answer: (D) 15/7

Explanation: x = 36/99 = 4/11; hence (1 + x)/(1 − x) = (15/11)/(7/11) = 15/7.
Which fraction is greater than 0.62 but less than 0.625?
1. 31/50
2. 28/45
3. 19/30
4. 5/8
Show answer

Answer: (B) 28/45

Explanation: 28/45 = 0.62222 recurring, which lies strictly between 0.62 and 0.625.
Evaluate 0.125 × 48.
1. 12
2. 0.6
3. 6
4. 3
Show answer

Answer: (C) 6

Explanation: 0.125 = 1/8, so 0.125 × 48 = 48 ÷ 8 = 6.
A bus travels 16.8 km on 1.2 litres of diesel. At the same rate, how many km will it travel on 3.5 litres?
1. 49
2. 58.8
3. 40
4. 4.9
Show answer

Answer: (A) 49

Explanation: Mileage = 16.8 ÷ 1.2 = 14 km per litre; distance = 14 × 3.5 = 49 km.
Find the positive value of x if (x + 0.4)² − (x − 0.4)² = 3.84.
1. 1.2
2. 2.4
3. 9.6
4. 4.8
Show answer

Answer: (B) 2.4

Explanation: Use (u + v)² − (u − v)² = 4uv: 1.6x = 3.84, so x = 2.4.
If 736 × 28 = 20608, find 0.0736 × 2.8.
1. 20.608
2. 2.0608
3. 0.020608
4. 0.20608
Show answer

Answer: (D) 0.20608

Explanation: The factors have a total of 5 decimal places, so 20608 becomes 0.20608.
If x = 0.(9), where 9 repeats, find 1 − x.
1. 0.1
2. 0.01
3. 1/9
4. 0
Show answer

Answer: (D) 0

Explanation: x = 9/9 = 1, so 1 − x = 0.
If 6.04 = 6 + a/10 + b/100, where a and b are decimal digits, find a + b.
1. 40
2. 4
3. 6
4. 10
Show answer

Answer: (B) 4

Explanation: The tenths digit is a = 0 and the hundredths digit is b = 4; hence a + b = 4.
A 24.5 m ribbon is cut into 0.6 m pieces. Each cut wastes 0.01 m, and each usable piece needs one cut. What is the maximum number of full pieces?
1. 40
2. 42
3. 41
4. 39
Show answer

Answer: (A) 40

Explanation: Each piece uses 0.6 + 0.01 = 0.61 m. Since 40 × 0.61 = 24.4 and 41 × 0.61 = 25.01, the maximum is 40.
Evaluate (5.7 + 2.3) × 0.45 − 0.18 ÷ 0.06.
1. 3.3
2. 6.6
3. 0.6
4. 0.06
Show answer

Answer: (C) 0.6

Explanation: The sum in brackets is 8, so the expression becomes 3.6 − 3 = 0.6.
Which is the smallest of the following?
1. 0.91
2. 0.909
3. 0.9099
4. 10/11
Show answer

Answer: (B) 0.909

Explanation: 10/11 = 0.90909 recurring, which is slightly greater than 0.909; both 0.9099 and 0.91 are also greater.
A price of ₹640 is multiplied by 1.125. By how many rupees does it increase?
1. 8
2. 72
3. 720
4. 80
Show answer

Answer: (D) 80

Explanation: Only the extra multiplier matters: increase = 640 × (1.125 − 1) = 640 × 0.125 = ₹80.
A quotient is 0.072. If its dividend is multiplied by 100 and its divisor is divided by 10, what is the new quotient?
1. 0.72
2. 7.2
3. 72
4. 720
Show answer

Answer: (C) 72

Explanation: The quotient is multiplied by 100 × 10 = 1000, so the new quotient is 0.072 × 1000 = 72.
The sum of two positive numbers is 0.9 and their difference is 0.3. Find their product.
1. 0.18
2. 0.09
3. 0.27
4. 0.36
Show answer

Answer: (A) 0.18

Explanation: Product = [(sum)² − (difference)²]/4 = (0.9² − 0.3²)/4 = 0.18.
If p = 0.84, q = −0.31 and r = −0.53, find (p³ + q³ + r³) ÷ (pqr).
1. −3
2. 3
3. 1
4. 0
Show answer

Answer: (B) 3

Explanation: Since p + q + r = 0, the identity p³ + q³ + r³ = 3pqr gives a quotient of 3.

Why it matters

Why Decimal Fractions MCQ – Part 2 is worth the hours

Where the marks actually come from.

Decimal Fractions MCQ – Part 2 is factual rather than analytical: you either recall it in seconds or you lose the mark to somebody who did. That makes it one of the cheapest sections to convert - a handful of short sittings usually settles the whole cluster.

Exam relevance

Exams where Decimal Fractions MCQ – Part 2 matters

Derived from the subject and lane this topic belongs to.

Punjab Police Constable

The highest-volume recruitment on this list. Build your base with Punjab GK and current affairs, then drill reasoning until speed is automatic.

Punjab Police ASI

Assistant Sub-Inspector papers separate candidates on English and Punjabi accuracy as much as on general awareness. Practise language daily.

Punjab Police Sub-Inspector (SI)

The most competitive paper here. Polity, history and quant reasoning decide the rank - so take full timed mocks before the exam.

Punjab Police Intelligence Assistant

Data handling, mental ability and computer awareness carry most of the weight. Use short topic sets and check every explanation.

Punjab Police Jail Warder

A tighter syllabus: general awareness, Punjabi and basic reasoning. Perfect for a daily quiz habit - short sessions, high consistency.

Patwari

Revenue work starts with Punjab geography, history and current affairs. Add quant for the sections that reward calculation speed.

Excise Inspector

General awareness and English carry this paper. Track Punjab policy news daily and revise it as MCQs, not as notes.

Naib Tehsildar

Land records, Punjab history and polity, plus data interpretation. A strong polity base is the fastest score to build.

Clerk

Grammar, comprehension, typing and basic computer knowledge. Accuracy beats speed here - review every wrong answer.

PSPCL jobs

Recruitment by the Punjab State Power Corporation Limited. Technical aptitude sits alongside general awareness and reasoning.

Punjab Police Head Constable

The communication and clerical tier of Punjab Police. Punjabi, English and general knowledge carry the paper, and computer awareness is worth real marks.

Staff Selection Commission

The central recruitment ladder most aspirants attempt alongside a state paper. Arithmetic, reasoning and English decide the score; general awareness decides the cutoff.

Railway Recruitment

A high-volume, high-speed paper. Arithmetic, reasoning and general awareness asked at a pace that punishes anyone still working out method during the attempt.

Banking Exams

Quantitative aptitude and reasoning at speed, with a separate English section and a general awareness paper that moves with the financial news cycle.

Expected questions

Expected questions from Decimal Fractions MCQ – Part 2

What an examiner usually reaches for in this cluster.

Expect one-line recall questions - definitions, stand-for expansions, identifiers and the ordering of things. Practise the wording as well as the concept: these papers test terminology, and the set above uses the same four-option shape they do.

Daily habit

Keep the Expected MCQs habit running

20 fresh mixed questions a day, plus the current-affairs sets examiners keep reusing.

Daily Quiz Expected MCQs

Previous year questions

Previous Year Questions

How this topic behaves in real papers.

Past papers reuse clusters like this almost verbatim across years and posts. Run the same set until every distractor is familiar - previous-year style questions stop being recall and start being free marks.

Where the previous-year sets live

The portal's previous-year practice runs through the General Knowledge lane and the daily mixed quiz.

Previous Year Questions Daily Quiz

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Decimal Fractions MCQ – Part 2 - common questions

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