🎯 RankerClub is 100% Free — 97 full-length mock tests with an instant all-India rank. Register Free →
RankerClub
Log in Get Started Free
Log in Register Free

SSC GD Constable Mixture & Alligation Questions with Answers & Explanations

18 Mixture & Alligation questions from the Elementary Mathematics section of SSC GD Constable, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.

Take the Elementary Mathematics test → SSC GD Constable full mocks
Question 1

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹42/kg?

  1. A19 : 2
  2. B2 : 3
  3. C9 : 1
  4. D1 : 9
Show answer
Answer: (C) 9 : 1 By alligation, ratio = (60 − 42) : (42 − 40) = 9 : 1.
Question 2

In what ratio must rice at ₹20/kg be mixed with rice at ₹30/kg so that the mixture costs ₹27/kg?

  1. A7 : 3
  2. B3 : 7
  3. C2 : 3
  4. D4 : 7
Show answer
Answer: (B) 3 : 7 By alligation, ratio = (30 − 27) : (27 − 20) = 3 : 7.
Question 3

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹46/kg?

  1. A7 : 3
  2. B1 : 1
  3. C5 : 2
  4. D3 : 7
Show answer
Answer: (A) 7 : 3 By alligation, ratio = (60 − 46) : (46 − 40) = 7 : 3.
Question 4

In what ratio must rice at ₹30/kg be mixed with rice at ₹45/kg so that the mixture costs ₹38/kg?

  1. A1 : 1
  2. B2 : 3
  3. C7 : 8
  4. D8 : 7
Show answer
Answer: (C) 7 : 8 By alligation, ratio = (45 − 38) : (38 − 30) = 7 : 8.
Question 5

In what ratio must rice at ₹50/kg be mixed with rice at ₹80/kg so that the mixture costs ₹69/kg?

  1. A12 : 19
  2. B11 : 19
  3. C5 : 8
  4. D1 : 1
Show answer
Answer: (B) 11 : 19 By alligation, ratio = (80 − 69) : (69 − 50) = 11 : 19.
Question 6

In what ratio must rice at ₹50/kg be mixed with rice at ₹80/kg so that the mixture costs ₹52/kg?

  1. A1 : 14
  2. B5 : 8
  3. C14 : 1
  4. D1 : 1
Show answer
Answer: (C) 14 : 1 By alligation, ratio = (80 − 52) : (52 − 50) = 14 : 1.
Question 7

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹58/kg?

  1. A1 : 1
  2. B2 : 3
  3. C1 : 6
  4. D1 : 9
Show answer
Answer: (D) 1 : 9 By alligation, ratio = (60 − 58) : (58 − 40) = 1 : 9.
Question 8

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹48/kg?

  1. A3 : 2
  2. B13 : 8
  3. C1 : 1
  4. D2 : 3
Show answer
Answer: (A) 3 : 2 By alligation, ratio = (60 − 48) : (48 − 40) = 3 : 2.
Question 9

In what ratio must rice at ₹15/kg be mixed with rice at ₹25/kg so that the mixture costs ₹20/kg?

  1. A6 : 5
  2. B1 : 1
  3. C1 : 2
  4. D3 : 5
Show answer
Answer: (B) 1 : 1 By alligation, ratio = (25 − 20) : (20 − 15) = 1 : 1.
Question 10

In what ratio must rice at ₹24/kg be mixed with rice at ₹36/kg so that the mixture costs ₹35/kg?

  1. A2 : 3
  2. B1 : 11
  3. C11 : 1
  4. D1 : 1
Show answer
Answer: (B) 1 : 11 By alligation, ratio = (36 − 35) : (35 − 24) = 1 : 11.

Ready for the real thing?
Timed Elementary Mathematics test · 20 questions · instant rank

Start free test
Question 11

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹53/kg?

  1. A13 : 7
  2. B2 : 3
  3. C7 : 13
  4. D8 : 13
Show answer
Answer: (C) 7 : 13 By alligation, ratio = (60 − 53) : (53 − 40) = 7 : 13.
Question 12

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹44/kg?

  1. A2 : 3
  2. B1 : 1
  3. C17 : 4
  4. D4 : 1
Show answer
Answer: (D) 4 : 1 By alligation, ratio = (60 − 44) : (44 − 40) = 4 : 1.
Question 13

In what ratio must rice at ₹30/kg be mixed with rice at ₹45/kg so that the mixture costs ₹35/kg?

  1. A1 : 2
  2. B2 : 3
  3. C11 : 5
  4. D2 : 1
Show answer
Answer: (D) 2 : 1 By alligation, ratio = (45 − 35) : (35 − 30) = 2 : 1.
Question 14

In what ratio must rice at ₹24/kg be mixed with rice at ₹36/kg so that the mixture costs ₹28/kg?

  1. A2 : 1
  2. B1 : 1
  3. C9 : 4
  4. D2 : 3
Show answer
Answer: (A) 2 : 1 By alligation, ratio = (36 − 28) : (28 − 24) = 2 : 1.
Question 15

In what ratio must rice at ₹30/kg be mixed with rice at ₹45/kg so that the mixture costs ₹41/kg?

  1. A4 : 11
  2. B1 : 1
  3. C11 : 4
  4. D5 : 11
Show answer
Answer: (A) 4 : 11 By alligation, ratio = (45 − 41) : (41 − 30) = 4 : 11.
Question 16

In what ratio must rice at ₹30/kg be mixed with rice at ₹45/kg so that the mixture costs ₹34/kg?

  1. A3 : 1
  2. B1 : 1
  3. C4 : 11
  4. D11 : 4
Show answer
Answer: (D) 11 : 4 By alligation, ratio = (45 − 34) : (34 − 30) = 11 : 4.
Question 17

In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg so that the mixture costs ₹54/kg?

  1. A2 : 3
  2. B3 : 7
  3. C7 : 3
  4. D1 : 2
Show answer
Answer: (B) 3 : 7 By alligation, ratio = (60 − 54) : (54 − 40) = 3 : 7.
Question 18

In what ratio must rice at ₹30/kg be mixed with rice at ₹45/kg so that the mixture costs ₹44/kg?

  1. A14 : 1
  2. B1 : 7
  3. C2 : 3
  4. D1 : 14
Show answer
Answer: (D) 1 : 14 By alligation, ratio = (45 − 44) : (44 − 30) = 1 : 14.

These are RankerClub practice questions written in the SSC GD Constable pattern. They are not official SSC/IBPS/RRB papers.

More Elementary Mathematics topics

Number System 28 Qs Speed, Time & Distance 23 Qs Profit, Loss & Discount 21 Qs Mensuration 20 Qs Simple & Compound Interest 19 Qs Simplification & Approximation 18 Qs Average 18 Qs Time & Work 17 Qs

All SSC GD Constable topics →