Skip to content
ExamTrack Prep
Exams, mocks, study material, current affairs and more

Quantitative Aptitude | Questions

Percentage questions with solutions

Percentage is a Quantitative Aptitude topic for competitive exams. It is tested in RRB Ministerial and Isolated Categories, RPF SI, RRB Section Controller, RPF Constable and other exams. This page has 73 solved percentage questions written to the official pattern, with a worked solution under each.

73 questionsQuantitative Aptitude
  1. Question 1Easy

    What is 15% of 240?

    • A.36Correct
    • B.32
    • C.40
    • D.34
    Show solution

    15% of 240 = 15/100 x 240 = 36. A quick check: 10% is 24 and 5% is 12, and 24 + 12 = 36.

  2. Question 2Easy

    What is 20% of 200?

    • A.56
    • B.44
    • C.36
    • D.40Correct
    • E.24
    Show solution

    20% of 200 is (20/100) × 200 = 40.

  3. Question 3Easy

    What is 25% of 480?

    • A.120Correct
    • B.140
    • C.100
    • D.96
    • E.150
    Show solution

    25% is one fourth, so 25% of 480 is 480 divided by 4, which is 120.

  4. Question 4Easy

    Find 25% of 480.

    • A.120Correct
    • B.96
    • C.144
    • D.160
    Show solution

    25% of 480 = 480 × 25/100 = 480 × 1/4 = 120.

  5. Question 5Easy

    A patrol boat consumes 40 litres of fuel. If 15% is reserve and cannot be used, how many litres are available for the patrol?

    • A.34 litresCorrect
    • B.30 litres
    • C.36 litres
    • D.32 litres
    Show solution

    Reserve = 15% of 40 = 6 litres. Available = 40 − 6 = 34 litres.

  6. Question 6Easy

    Find 20% of 350.

    • A.70Correct
    • B.35
    • C.140
    • D.105
    Show solution

    20% of 350 = 350 × 20/100 = 350 × 1/5 = 70.

  7. Question 7Easy

    A number is increased by 20% and then decreased by 20%. What is the net change?

    • A.4% decreaseCorrect
    • B.No change
    • C.4% increase
    • D.20% decrease
    Show solution

    Start with 100. After +20% it becomes 120; after −20% of 120 it becomes 96. Net change = −4%, a 4% decrease. Equal ± percentages on different bases never cancel.

  8. Question 8Easy

    What is 45% of 640 + 28% of 250?

    • A.348
    • B.352
    • C.358Correct
    • D.362
    • E.368
    Show solution

    45% of 640 is 0.45 x 640 = 288, and 28% of 250 is 0.28 x 250 = 70. Adding gives 288 + 70 = 358. Converting a percentage to a decimal and multiplying is the quickest route when the numbers are not round fractions.

  9. Question 9Easy

    A quantity of 120 is decreased by 20%. What is the new value?

    • A.82
    • B.86
    • C.110
    • D.106
    • E.96Correct
    Show solution

    20% of 120 is 24, so the new value is 96.

  10. Question 10Easy

    Find 12.5% of 400.

    • A.38
    • B.50Correct
    • C.62
    • D.66
    • E.34
    Show solution

    12.5% means 12.5/100, so 12.5% of 400 = 50.

  11. Question 11Easy

    Find the value of 15% of 260.

    • A.39Correct
    • B.42
    • C.36
    • D.45
    • E.30
    Show solution

    15% of 260 is 15/100 times 260, which equals 39.

  12. Question 12Easy

    A ration store has 500 kg of supplies. If 12% is kept as emergency reserve, how many kilograms are available for daily issue?

    • A.440 kgCorrect
    • B.460 kg
    • C.450 kg
    • D.488 kg
    Show solution

    Reserve = 12% of 500 = 60 kg. Available = 500 − 60 = 440 kg.

These are 12 of 73 percentage questions in the bank. Attempt the rest with instant feedback in the practice drills, or under a clock in the mock tests.

Advertisement

Frequently asked questions

How many Percentage questions are here?

This page shows 12 worked percentage questions from a bank of 73, spanning 30 easy, 30 moderate and 13 hard. The full set is available to attempt in the timed-free practice drills and the mock tests.

Which exams ask Percentage questions?

Percentage is part of the Quantitative Aptitude syllabus for RRB Ministerial and Isolated Categories, RPF SI, RRB Section Controller, RPF Constable, RRB JE, RRB Technician, RRB ALP, RRB Group D, RRB NTPC. Weightage varies by exam and stage — check each exam's page for its pattern.

Are these Percentage questions free, and are the answers reliable?

Yes. Every question is free, written in-house to the exam pattern rather than copied from a real paper, and the numeric answer keys are recomputed independently at build time — a wrong key fails the build rather than reaching you.