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Practice Test 3
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SSC CGL Ratio, Proportion and Average Verified Practice Test 3

15 structurally validated Ratio, Proportion and Average questions with unique options, mapped answers and explanations.

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SSC CGL Practice Session

SSC CGL Ratio, Proportion and Average Verified Practice Test 3

15 structurally validated Ratio, Proportion and Average questions with unique options, mapped answers and explanations.

Questions
15
Marking
+2 correct, -0.5 wrong
Format
15-question practice session
Preview all 15 questions in SSC CGL Ratio, Proportion and Average Verified Practice Test 3 (no login required)
  1. Ratio

    1. Simplify the ratio 18:24

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

    Explanation: Divide both terms by 6.

  2. Proportion

    2. If 4:5 = x:20, then x =

    • A. 12
    • B. 14
    • C. 16 (Correct)
    • D. 18

    Explanation: x = 20 x 4/5 = 16.

  3. Average

    3. If the average of 5 numbers is 12, their total is:

    • A. 48
    • B. 50
    • C. 60 (Correct)
    • D. 72

    Explanation: Total = average x number of terms = 12 x 5.

  4. Ages

    4. Present ages of A and B are in ratio 3:5. If A is 18, then B is:

    • A. 24
    • B. 28
    • C. 30 (Correct)
    • D. 32

    Explanation: 1 part = 6, so B = 5 x 6 = 30.

  5. Partnership

    5. A and B invest in ratio 2:3. Profit is 5000. B's share is:

    • A. 2000
    • B. 2500
    • C. 3000 (Correct)
    • D. 3500

    Explanation: B gets 3/5 of 5000 = 3000.

  6. Mixture

    6. Rice and wheat are mixed in ratio 2:3. In 25 kg mixture, wheat is:

    • A. 10 kg
    • B. 12 kg
    • C. 15 kg (Correct)
    • D. 18 kg

    Explanation: Wheat = 3/5 of 25 = 15 kg.

  7. Average

    7. Average of first 6 natural numbers is:

    • A. 3
    • B. 3.5 (Correct)
    • C. 4
    • D. 4.5

    Explanation: Sum 1 to 6 = 21, average = 21/6 = 3.5.

  8. Ratio

    8. If boys:girls = 7:5 and total students are 48, number of girls is:

    • A. 18
    • B. 20 (Correct)
    • C. 22
    • D. 24

    Explanation: Total parts = 12, one part = 4, girls = 5 x 4 = 20.

  9. Weighted Average

    9. Average of 8 numbers is 14. If one more number 22 is included, new average is:

    • A. 14
    • B. 14 8/9 (Correct)
    • C. 15
    • D. 15 1/2

    Explanation: Original total = 112, new total = 134, new average = 134/9 = 14 8/9.

  10. Ages

    10. Average age of 4 friends is 20 years. Total age is:

    • A. 60
    • B. 70
    • C. 80 (Correct)
    • D. 90

    Explanation: Total age = 20 x 4 = 80.

  11. Average

    11. One number is removed from 5, 7, 9, 11, 13 and average becomes 9. Removed number is:

    • A. 5
    • B. 7
    • C. 9 (Correct)
    • D. 11

    Explanation: Original sum = 45. New total for 4 numbers = 36, so removed number = 9.

  12. Proportion

    12. If x:y = 2:7 and x = 8, then y =

    • A. 14
    • B. 20
    • C. 24
    • D. 28 (Correct)

    Explanation: Scale factor is 4, so y = 7 x 4 = 28.

  13. Ratio

    13. The ratio 0.6:1.2 simplifies to:

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

    Explanation: Divide both terms by 0.6.

  14. Average

    14. Average of 11 numbers is 50. If average of first 6 is 48, average of remaining 5 is:

    • A. 50.4
    • B. 51.6
    • C. 52.4 (Correct)
    • D. 53.2

    Explanation: Total = 550, first 6 total = 288, remaining total = 262, average = 262/5 = 52.4.

  15. Ratio

    15. Simplify 24:36

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

    Explanation: Divide both terms by 12.