ISSB - Pak Navy Officer Selection Mathematics: Most Important MCQs with Answers

Practise ISSB - Pak Navy Officer Selection Mathematics most important MCQs in sets of about 20 questions with instant answers and explanations. This page f…

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ISSB - Pak Navy Officer Selection Mathematics Most Important sample MCQs

  1. Q1. What is the next number in the series: 2, 6, 12, 20, 30, ?

    • A) 40
    • B) 42
    • C) 44
    • D) 46

    Answer: 42

  2. Q2. Average of 5 numbers is 20. If one number is removed, average becomes 18. The removed number is:

    • A) 24
    • B) 26
    • C) 28
    • D) 30

    Answer: 28

  3. Q3. If 12 workers finish a job in 8 days, how many days for 16 workers (same rate)?

    • A) 4
    • B) 5
    • C) 6
    • D) 7

    Answer: 6

  4. Q4. Average of 5 numbers is 18. If one number 12 is replaced by 32, new average?

    • A) 20
    • B) 22
    • C) 24
    • D) 26

    Answer: 22

  5. Q5. Pipe A fills tank in 6 h, B in 12 h. Together, time to fill?

    • A) 3 h
    • B) 4 h
    • C) 5 h
    • D) 8 h

    Answer: 4 h

  6. Q6. LCM of 12 and 18?

    • A) 6
    • B) 24
    • C) 36
    • D) 72

    Answer: 36

  7. Q7. A car travels 240 km in 4 hours. Time for 360 km at same speed?

    • A) 5 h
    • B) 6 h
    • C) 7 h
    • D) 8 h

    Answer: 6 h

  8. Q8. Divide Rs 4500 among A,B,C in ratio 2:3:5. C receives?

    • A) Rs 900
    • B) Rs 1350
    • C) Rs 2250
    • D) Rs 2700

    Answer: Rs 2250

  9. Q9. Sum of three consecutive even integers is 54. Largest integer?

    • A) 16
    • B) 18
    • C) 20
    • D) 22

    Answer: 20

  10. Q10. Compound interest on Rs 1000 at 10% for 2 years (annual)?

    • A) Rs 200
    • B) Rs 210
    • C) Rs 220
    • D) Rs 1210 total only

    Answer: Rs 210

  11. Q11. A train 100 m long passes a pole in 10 s. Length of train in metres?

    • A) 10
    • B) 50
    • C) 100
    • D) 1000

    Answer: 100

  12. Q12. If 12 men finish work in 8 days, 16 men will finish in:

    • A) 4 days
    • B) 6 days
    • C) 8 days
    • D) 10 days

    Answer: 6 days

  13. Q13. Average of first five natural numbers?

    • A) 2
    • B) 3
    • C) 4
    • D) 5

    Answer: 3

  14. Q14. Missing term: 7, 14, 28, 56, ?

    • A) 84
    • B) 98
    • C) 112
    • D) 128

    Answer: 112

  15. Q15. A bag has 3 red and 5 blue balls. Probability of drawing red?

    • A) 3/8
    • B) 5/8
    • C) 3/5
    • D) 1/3

    Answer: 3/8

  16. Q16. An ISSB candidate buys study notes for Rs 2400 and sells them at a 15% loss. The selling price is:

    • A) Rs 2160
    • B) Rs 2280
    • C) Rs 2040
    • D) Rs 2760

    Answer: Rs 2040

  17. Q17. A cadet store buys calculators at Rs 640 each and sells them at Rs 800. The profit percent on cost price is:

    • A) 20%
    • B) 25%
    • C) 30%
    • D) 16%

    Answer: 25%

  18. Q18. A PAF uniform is marked Rs 3500. After a 20% discount, the sale price is:

    • A) Rs 2800
    • B) Rs 2700
    • C) Rs 3000
    • D) Rs 2450

    Answer: Rs 2800

  19. Q19. An article is sold for Rs 1125 at a loss of 25%. Its cost price was:

    • A) Rs 1400
    • B) Rs 1450
    • C) Rs 1350
    • D) Rs 1500

    Answer: Rs 1500

  20. Q20. Successive discounts of 10% and 15% on the marked price are equal to a single discount of:

    • A) 25%
    • B) 23.5%
    • C) 22.5%
    • D) 24%

    Answer: 23.5%

What are most important Mathematics MCQs for ISSB - Pak Navy Officer Selection?

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