ISSB - Pak Navy Officer Selection Mathematics Percentages — Set 3

ISSB - Pak Navy Officer Selection Mathematics Percentages — Set 3

1. Question 1

   Q1. What is 12% of 350?

   • A) 38
   • B) 42
   • C) 45
   • D) 48

   Answer: 42

   Explanation: Twelve percent of 350 equals 0.12 times 350 which is 42. Work each step carefully; ISSB math rewards accuracy under time pressure.

2. Question 2

   Q2. What is 8% of 500?

   • A) 30
   • B) 35
   • C) 40
   • D) 45

   Answer: 40

   Explanation: Eight percent of 500 equals 0.08 times 500 which is 40. Work each step carefully; ISSB math rewards accuracy under time pressure.

3. Question 3

   Q3. A number increased by 20% becomes 480. Original?

   • A) 380
   • B) 400
   • C) 420
   • D) 460

   Answer: 400

   Explanation: 480 is 120 percent so original is 480 divided by 1.2 equals 400.

4. Question 4

   Q4. Population 80000 decreases 5%. New population?

   • A) 74000
   • B) 76000
   • C) 78000
   • D) 79000

   Answer: 76000

   Explanation: Five percent of 80000 is 4000 so new total is 76000. Work each step carefully; ISSB math rewards accuracy under time pressure.

5. Question 5

   Q5. Salary 25000 increased 8%. New salary?

   • A) 26000
   • B) 26500
   • C) 27000
   • D) 27500

   Answer: 27000

   Explanation: Eight percent of 25000 is 2000 so new salary is 27000. Work each step carefully; ISSB math rewards accuracy under time pressure.

6. Question 6

   Q6. Simple interest on 5000 at 10% for 2 years?

   • A) 500
   • B) 1000
   • C) 1500
   • D) 2000

   Answer: 1000

   Explanation: SI equals P times R times T over 100 so 5000 times 10 times 2 over 100 is 1000.

7. Question 7

   Q7. What is 35% of 200?

   • A) 60
   • B) 65
   • C) 70
   • D) 75

   Answer: 70

   Explanation: Thirty five percent of 200 equals 0.35 times 200 which is 70.

8. Question 8

   Q8. Reduce 750 by 12%. Result?

   • A) 640
   • B) 650
   • C) 660
   • D) 670

   Answer: 660

   Explanation: Twelve percent of 750 is 90 so result is 660. Work each step carefully; ISSB math rewards accuracy under time pressure.

9. Question 9

   Q9. What percent is 63 of 252?

   • A) 20%
   • B) 25%
   • C) 30%
   • D) 35%

   Answer: 25%

   Explanation: 63 divided by 252 times 100 equals 25 percent. Work each step carefully; ISSB math rewards accuracy under time pressure.

10. Question 10

    Q10. A sum becomes 1150 after 15% increase. Original?

    • A) 950
    • B) 975
    • C) 1000
    • D) 1050

    Answer: 1000

    Explanation: 1150 is 115 percent so original is 1150 divided by 1.15 equals 1000.

11. Question 11

    Q11. Express 0.075 as percent.

    • A) 0.75%
    • B) 7.5%
    • C) 75%
    • D) 0.075%

    Answer: 7.5%

    Explanation: Multiply by 100 to convert decimal to percent giving 7.5%. Apply the same method to similar ISSB quantitative items.

12. Question 12

    Q12. Price 400 after 20% discount. Marked price?

    • A) 450
    • B) 480
    • C) 500
    • D) 520

    Answer: 500

    Explanation: 400 is 80 percent of MP so MP is 400 divided by 0.8 equals 500.

13. Question 13

    Q13. What is 15% of 280?

    • A) 38
    • B) 40
    • C) 42
    • D) 45

    Answer: 42

    Explanation: Fifteen percent of 280 equals 0.15 times 280 which is 42. Apply the same method to similar ISSB quantitative items.

14. Question 14

    Q14. What is 6% of 750?

    • A) 40
    • B) 42
    • C) 45
    • D) 48

    Answer: 45

    Explanation: Six percent of 750 equals 0.06 times 750 which is 45. Apply the same method to similar ISSB quantitative items.

15. Question 15

    Q15. A number increased by 15% becomes 575. Original?

    • A) 480
    • B) 490
    • C) 500
    • D) 510

    Answer: 500

    Explanation: 575 is 115 percent so original is 575 divided by 1.15 equals 500.

16. Question 16

    Q16. What percent is 36 of 144?

    • A) 20%
    • B) 25%
    • C) 30%
    • D) 35%

    Answer: 25%

    Explanation: 36 divided by 144 times 100 equals 25 percent. Apply the same method to similar ISSB quantitative items.

17. Question 17

    Q17. Salary 30000 increased 10%. New salary?

    • A) 32000
    • B) 32500
    • C) 33000
    • D) 33500

    Answer: 33000

    Explanation: Ten percent of 30000 is 3000 so new salary is 33000. Apply the same method to similar ISSB quantitative items.

18. Question 18

    Q18. Simple interest on 6000 at 8% for 2 years?

    • A) 860
    • B) 920
    • C) 960
    • D) 1000

    Answer: 960

    Explanation: SI equals P times R times T over 100 so 6000 times 8 times 2 over 100 is 960.

19. Question 19

    Q19. What is 22% of 350?

    • A) 70
    • B) 75
    • C) 77
    • D) 80

    Answer: 77

    Explanation: Twenty two percent of 350 equals 0.22 times 350 which is 77.

20. Question 20

    Q20. Reduce 640 by 15%. Result?

    • A) 530
    • B) 540
    • C) 544
    • D) 550

    Answer: 544

    Explanation: Fifteen percent of 640 is 96 so result is 544. Work each step carefully; ISSB math rewards accuracy under time pressure.