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SSC CGL Mixture and Alligation Practice Test 3

15 SSC CGL mixture and alligation questions with chapter-wise explanations and exam-style options.

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SSC CGL Mixture and Alligation Practice Test 3

15 SSC CGL mixture and alligation questions with chapter-wise explanations and exam-style options.

Questions
15
Marking
+2 correct, -0.5 wrong
Format
15-question ad-supported session
Preview all 15 questions in SSC CGL Mixture and Alligation Practice Test 3 (no login required)
  1. Mixture and Alligation

    1. Simplify 24:36

    • A. 1:2
    • B. 2:3 (Correct)
    • C. 3:4
    • D. 4:5

    Explanation: Divide both terms by 12.

  2. Mixture and Alligation

    2. If 3:4 = x:20, then x =

    • A. 12
    • B. 15 (Correct)
    • C. 16
    • D. 18

    Explanation: x = 20 x 3/4 = 15.

  3. Mixture and Alligation

    3. Average of 6, 8, 10, 12 is:

    • A. 8
    • B. 9 (Correct)
    • C. 10
    • D. 11

    Explanation: Sum = 36, average = 9.

  4. Mixture and Alligation

    4. Average of 7 numbers is 18. Their total is:

    • A. 112
    • B. 116
    • C. 120
    • D. 126 (Correct)

    Explanation: Total = 18 x 7 = 126.

  5. Mixture and Alligation

    5. A:B = 4:7 and A = 20, then B =

    • A. 28
    • B. 30
    • C. 32
    • D. 35 (Correct)

    Explanation: One part = 5, so B = 7 x 5 = 35.

  6. Mixture and Alligation

    6. A and B invest in ratio 5:3. Profit is 6400. A's share is:

    • A. 3200
    • B. 3600
    • C. 4000 (Correct)
    • D. 4200

    Explanation: A gets 5/8 of 6400 = 4000.

  7. Mixture and Alligation

    7. Rice and wheat are mixed in ratio 4:1. In 30 kg mixture, rice is:

    • A. 20 kg
    • B. 22 kg
    • C. 24 kg (Correct)
    • D. 26 kg

    Explanation: Rice = 4/5 of 30 = 24 kg.

  8. Mixture and Alligation

    8. Average of first 10 natural numbers is:

    • A. 5
    • B. 5.5 (Correct)
    • C. 6
    • D. 6.5

    Explanation: Sum 1 to 10 = 55, average = 55/10.

  9. Mixture and Alligation

    9. If boys:girls = 3:2 and total is 45, girls are:

    • A. 15
    • B. 18 (Correct)
    • C. 20
    • D. 24

    Explanation: Total parts = 5, one part = 9, girls = 2 x 9 = 18.

  10. Mixture and Alligation

    10. Average of 9 numbers is 16. If one more number 34 is included, new average is:

    • A. 17
    • B. 17.2
    • C. 17.8 (Correct)
    • D. 18

    Explanation: Original total = 144, new total = 178, average = 17.8.

  11. Mixture and Alligation

    11. Average age of 5 children is 12 years. Total age is:

    • A. 50
    • B. 55
    • C. 60 (Correct)
    • D. 65

    Explanation: Total age = 12 x 5 = 60.

  12. Mixture and Alligation

    12. One number is removed from 4, 8, 12, 16, 20 and the average becomes 10. Removed number is:

    • A. 8
    • B. 12
    • C. 16
    • D. 20 (Correct)

    Explanation: Original sum = 60. New total for 4 numbers = 40, so removed number = 20.

  13. Mixture and Alligation

    13. If x:y = 5:9 and x = 15, then y =

    • A. 21
    • B. 24
    • C. 27 (Correct)
    • D. 30

    Explanation: Scale factor is 3, so y = 9 x 3 = 27.

  14. Mixture and Alligation

    14. The ratio 1.5:2.5 simplifies to:

    • A. 2:3
    • B. 3:5 (Correct)
    • C. 4:5
    • D. 5:6

    Explanation: Multiply both by 10 to get 15:25 = 3:5.

  15. Mixture and Alligation

    15. Average of 8 numbers is 25. If average of first 3 is 20, average of remaining 5 is:

    • A. 26
    • B. 27
    • C. 28 (Correct)
    • D. 29

    Explanation: Total = 200, first 3 total = 60, remaining = 140, average = 28.