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Quant – Ratio & Proportion – Set 6
Read the following instructions carefully
- The test contains 10 questions.
- Each question has 4 options, of which only one is correct.
- You have to finish the test in 8 minutes.
- You are awarded 1 mark for each correct answer, and 0.25 marks are deducted for each wrong answer.
- There is no negative marking for questions you do not attempt.
- You may pause the test at any time and resume where you left off.
- Your marks, the correct answers and an explanation for every question are shown as soon as you submit.
- You can take this test as many times as you like. A fresh set is drawn each time you reload the page.
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Review this set's questions and answers (opens after you submit the test)
This free practice set from AndamanJobs has 10 questions to be solved in 8 minutes. Every question is listed below with four options. Open Show answer and explanation under a question to see the correct option and why it is correct. Try the timed test above first, then use this list to revise the questions you got wrong.
- A and B start a business with Rs 2000 and Rs 3000 for the same period. They earn a profit of Rs 10,000. What is A's share?
- A. Rs 3600
- B. Rs 4400
- C. Rs 4000
- D. Rs 5200
Show answer and explanation
Answer: C. Rs 4000
Profit is shared in the ratio 2 : 3. A's share = 10,000 × 2000/5000 = Rs 4000.
- The income and expenditure of a person are in the ratio 6 : 5. If he saves Rs 5000, find his income.
- A. Rs 24,000
- B. Rs 21,000
- C. Rs 30,000
- D. Rs 39,000
Show answer and explanation
Answer: C. Rs 30,000
Income : expenditure = 6 : 5, so savings = 1 parts = 5000. Income = 6 × 5000 = Rs 30,000.
- If A : B = 4 : 5, B : C = 7 : 8 and C : D = 3 : 4, find A : D.
- A. 17 : 32
- B. 40 : 21
- C. 7 : 8
- D. 21 : 40
Show answer and explanation
Answer: D. 21 : 40
A : D = (4 × 7 × 3) : (5 × 8 × 4) = 84 : 160 = 21 : 40.
- Rs 9000 is divided among A, B and C in the ratio 3 : 4 : 5. How much does C get?
- A. Rs 4875
- B. Rs 3375
- C. Rs 3750
- D. Rs 4500
Show answer and explanation
Answer: C. Rs 3750
Total parts = 12, one part = 9000/12 = 750. C gets 5 × 750 = Rs 3750.
- The sum of two numbers is 192 and they are in the ratio 7 : 9. Find the larger number.
- A. 86
- B. 119
- C. 130
- D. 108
Show answer and explanation
Answer: D. 108
One part = 192/16 = 12. Larger number = 9 × 12 = 108.
- Two numbers are in the ratio 3 : 4. If 8 is added to each, the ratio becomes 7 : 9. Find the smaller number.
- A. 53
- B. 43
- C. 33
- D. 48
Show answer and explanation
Answer: D. 48
Let the numbers be 3k and 4k. (3k + 8)/(4k + 8) = 7/9 gives k = 16. Smaller number = 3 × 16 = 48.
- The present ages of A and B are in the ratio 5 : 7. After 12 years the ratio will be 3 : 4. What is A's present age?
- A. 62 years
- B. 56 years
- C. 66 years
- D. 60 years
Show answer and explanation
Answer: D. 60 years
Let ages be 5k and 7k. (5k + 12)/(7k + 12) = 3/4 gives k = 12. A = 5 × 12 = 60 years.
- If A : B = 2 : 3 and B : C = 3 : 7, find A : B : C.
- A. 2 : 3 : 10
- B. 2 : 3 : 7
- C. 12 : 19 : 44
- D. 7 : 3 : 2
Show answer and explanation
Answer: B. 2 : 3 : 7
Make B equal: A : B = 6 : 9 and B : C = 9 : 21. So A : B : C = 2 : 3 : 7.
- Find the mean proportional between 9 and 4.
- A. 4
- B. 5
- C. 6
- D. 7
Show answer and explanation
Answer: C. 6
Mean proportional = √(9 × 4) = √36 = 6.
- Find the third proportional to 25 and 50.
- A. 80
- B. 100
- C. 70
- D. 110
Show answer and explanation
Answer: B. 100
Third proportional = 50²/25 = 2500/25 = 100.