SSC CGL Mixture and Alligation Practice Test 4
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 4
15 SSC CGL mixture and alligation questions with chapter-wise explanations and exam-style options.
Preview all 15 questions in SSC CGL Mixture and Alligation Practice Test 4 (no login required)
- Mixture and Alligation
1. Simplify 42:56
- A. 2:3
- B. 3:4 (Correct)
- C. 4:5
- D. 5:6
Explanation: Divide both terms by 14.
- Mixture and Alligation
2. Average of 12, 16, 20 and 24 is:
- A. 16
- B. 17
- C. 18 (Correct)
- D. 19
Explanation: Sum = 72, so average = 18.
- Mixture and Alligation
3. If 5:8 = x:24, then x =
- A. 12
- B. 15 (Correct)
- C. 18
- D. 20
Explanation: x = 24 x 5/8 = 15.
- Mixture and Alligation
4. Average of 9 numbers is 14. Their total is:
- A. 116
- B. 122
- C. 126 (Correct)
- D. 132
Explanation: Total = 9 x 14 = 126.
- Mixture and Alligation
5. If boys:girls = 5:4 and total students are 81, girls are:
- A. 32
- B. 36 (Correct)
- C. 40
- D. 45
Explanation: Total parts = 9, one part = 9, so girls = 4 x 9 = 36.
- Mixture and Alligation
6. A:B = 3:5 and A is 24 years. B is:
- A. 32
- B. 36
- C. 40 (Correct)
- D. 42
Explanation: One part = 8, so B = 5 x 8 = 40.
- Mixture and Alligation
7. A and B invest in ratio 7:5. Total profit is Rs. 7200. B's share is:
- A. 2500
- B. 2800
- C. 3000 (Correct)
- D. 3200
Explanation: B gets 5/12 of 7200 = 3000.
- Mixture and Alligation
8. Average weight of 8 boys is 42 kg and of 4 girls is 36 kg. Average weight of all 12 children is:
- A. 38 kg
- B. 39 kg
- C. 40 kg (Correct)
- D. 41 kg
Explanation: Total weight = 8 x 42 + 4 x 36 = 480, so average = 480/12 = 40.
- Mixture and Alligation
9. Average of first 5 odd numbers is:
- A. 3
- B. 4
- C. 5 (Correct)
- D. 6
Explanation: The numbers are 1, 3, 5, 7, 9 with sum 25.
- Mixture and Alligation
10. Tea and sugar are mixed in ratio 9:1. In 50 kg mixture, sugar is:
- A. 4 kg
- B. 5 kg (Correct)
- C. 6 kg
- D. 7 kg
Explanation: Sugar is 1/10 of the mixture.
- Mixture and Alligation
11. The average of 6 numbers is 22. If one number 34 is removed, the average of remaining 5 numbers is:
- A. 18
- B. 19.6 (Correct)
- C. 20
- D. 21
Explanation: Total = 132. Remaining total = 98. Average = 98/5 = 19.6.
- Mixture and Alligation
12. Convert the ratio 0.8:1.2 into simplest form.
- A. 2:3 (Correct)
- B. 3:4
- C. 4:5
- D. 5:6
Explanation: Multiply by 10 to get 8:12 = 2:3.
- Mixture and Alligation
13. If the average of 4 values is 18, and three values are 10, 16, and 20, the fourth is:
- A. 22
- B. 24
- C. 26 (Correct)
- D. 28
Explanation: Total needed = 72. Given total = 46, so fourth value = 26.
- Mixture and Alligation
14. Rs. 540 is divided in the ratio 4:5. The larger share is:
- A. 220
- B. 240
- C. 260
- D. 300 (Correct)
Explanation: Total parts = 9, one part = 60, larger share = 5 x 60.
- Mixture and Alligation
15. Average age of A and B is 28 years, and average age of B and C is 32 years. If B is 30 years, average age of A and C is:
- A. 28
- B. 29
- C. 30 (Correct)
- D. 31
Explanation: A + B = 56 and B + C = 64, so A + C = 60 and average = 30.