ISSB - Pak Army Officer Selection Mathematics: Algebra MCQs

Practice Algebra MCQs for ISSB - Pak Army Officer Selection Mathematics — topic-wise sets with solved answers.

ISSB - Pak Army Officer Selection Mathematics: Algebra MCQs — sample questions

  1. Question 1

    Q1. If x² − 9 = 0, then x equals:

    • A) 3 only
    • B) −3 only
    • C) 3 or −3
    • D) 9

    Answer: 3 or −3

    Explanation: x² = 9 → x = ±3. Both roots matter - ISSB often traps students who pick only the positive root.

  2. Question 2

    Q2. If 3x + 7 = 22, value of 2x − 5?

    • A) 5
    • B) 7
    • C) 10
    • D) 15

    Answer: 5

    Explanation: 3x=15 → x=5. 2(5)−5 = 5. Work each step carefully; ISSB math rewards accuracy under time pressure.

  3. Question 3

    Q3. Sum of three consecutive even integers is 54. Largest integer?

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

    Answer: 20

    Explanation: x+(x+2)+(x+4)=54 → x=16. Largest = 20. Work each step carefully; ISSB math rewards accuracy under time pressure.

  4. Question 4

    Q4. If x/3 = 4, then 2x = ?

    • A) 12
    • B) 18
    • C) 24
    • D) 36

    Answer: 24

    Explanation: x = 12 from the first equation. Double it: 2x = 24.

  5. Question 5

    Q5. If 5x - 15 = 0, then x = ?

    • A) 2
    • B) 3
    • C) 5
    • D) 15

    Answer: 3

    Explanation: 5x = 15, divide both sides by 5. x = 3. Work each step carefully; ISSB math rewards accuracy under time pressure.

  6. Question 6

    Q6. If 3x + 5 = 20, what is the value of x?

    • A) 3
    • B) 5
    • C) 7
    • D) 15

    Answer: 5

    Explanation: Subtract 5 from both sides to get 3x equals 15. Divide by 3 to get x equals 5.

  7. Question 7

    Q7. Solve for y: 2(y - 3) = 14.

    • A) 4
    • B) 7
    • C) 10
    • D) 11

    Answer: 10

    Explanation: Divide both sides by 2 to get y minus 3 equals 7. Add 3 to both sides to get y equals 10.

  8. Question 8

    Q8. If 2x + 6 = 18, what is x?

    • A) 4
    • B) 6
    • C) 8
    • D) 12

    Answer: 6

    Explanation: Subtract 6 from both sides to get 2x = 12. Divide by 2 to get x = 6.

  9. Question 9

    Q9. Solve: 3(x - 2) = 15.

    • A) 5
    • B) 7
    • C) 9
    • D) 11

    Answer: 7

    Explanation: Divide both sides by 3 to get x - 2 = 5. Add 2 to get x = 7.

  10. Question 10

    Q10. If 5x = 45, then x is:

    • A) 7
    • B) 8
    • C) 9
    • D) 10

    Answer: 9

    Explanation: Divide both sides by 5 to get x = 9. Work each step carefully; ISSB math rewards accuracy under time pressure.

  11. Question 11

    Q11. Solve: x/3 = 7.

    • A) 18
    • B) 21
    • C) 24
    • D) 28

    Answer: 21

    Explanation: Multiply both sides by 3 to get x = 21. Work each step carefully; ISSB math rewards accuracy under time pressure.

  12. Question 12

    Q12. If 2x - 4 = 10, x is:

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

    Answer: 7

    Explanation: Add 4 to both sides to get 2x = 14. Divide by 2 to get x = 7.

  13. Question 13

    Q13. If 4x + 8 = 24, x is:

    • A) 3
    • B) 4
    • C) 5
    • D) 6

    Answer: 4

    Explanation: Subtract 8 to get 4x = 16. Divide by 4 to get x = 4.

  14. Question 14

    Q14. Solve: x - 7 = 15.

    • A) 20
    • B) 22
    • C) 23
    • D) 21

    Answer: 22

    Explanation: Add 7 to both sides to get x = 22. Work each step carefully; ISSB math rewards accuracy under time pressure.

  15. Question 15

    Q15. If 3(x+2)=21, x is:

    • A) 3
    • B) 5
    • C) 7
    • D) 9

    Answer: 5

    Explanation: Divide by 3 to get x+2=7. Subtract 2 to get x=5. Work each step carefully; ISSB math rewards accuracy under time pressure.

  16. Question 16

    Q16. Solve: 2x/5 = 4.

    • A) 8
    • B) 10
    • C) 12
    • D) 6

    Answer: 10

    Explanation: Multiply both sides by 5 to get 2x=20. Divide by 2 to get x=10.

  17. Question 17

    Q17. If 3x = 27, x is:

    • A) 7
    • B) 8
    • C) 9
    • D) 10

    Answer: 9

    Explanation: Divide both sides by 3 to get x = 9. Work each step carefully; ISSB math rewards accuracy under time pressure.

  18. Question 18

    Q18. Solve: x/4 = 5.

    • A) 15
    • B) 20
    • C) 25
    • D) 30

    Answer: 20

    Explanation: Multiply both sides by 4 to get x = 20. Work each step carefully; ISSB math rewards accuracy under time pressure.

  19. Question 19

    Q19. If 5(x-1)=20, x is:

    • A) 3
    • B) 4
    • C) 5
    • D) 6

    Answer: 5

    Explanation: Divide by 5 to get x-1=4. Add 1 to get x=5. Work each step carefully; ISSB math rewards accuracy under time pressure.

  20. Question 20

    Q20. Solve: 2x+3=11.

    • A) 3
    • B) 4
    • C) 5
    • D) 6

    Answer: 4

    Explanation: Subtract 3 to get 2x=8. Divide by 2 to get x=4. Work each step carefully; ISSB math rewards accuracy under time pressure.

Loading...