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Quant – Ratio & Proportion – Set 10
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.
- The sum of two numbers is 48 and they are in the ratio 5 : 7. Find the larger number.
- A. 28
- B. 31
- C. 19
- D. 22
Show answer and explanation
Answer: A. 28
One part = 48/12 = 4. Larger number = 7 × 4 = 28.
- If A : B = 3 : 4 and B : C = 2 : 3, find A : B : C.
- A. 6 : 4 : 3
- B. 3 : 4 : 6
- C. 3 : 4 : 3
- D. 3 : 4 : 10
Show answer and explanation
Answer: B. 3 : 4 : 6
Make B equal: A : B = 6 : 8 and B : C = 8 : 12. So A : B : C = 3 : 4 : 6.
- Find x if 5 : 6 = 10 : x.
- A. 9
- B. 11
- C. 12
- D. 14
Show answer and explanation
Answer: C. 12
x = 6 × 10/5 = 12.
- Find the third proportional to 3 and 9.
- A. 33
- B. 24
- C. 36
- D. 27
Show answer and explanation
Answer: D. 27
Third proportional = 9²/3 = 81/3 = 27.
- A bag contains Re 1, 50 paise and 25 paise coins in the ratio 4 : 3 : 2. If the total value is Rs 24, how many 50 paise coins are there?
- A. 13
- B. 9
- C. 12
- D. 10
Show answer and explanation
Answer: C. 12
Let the coins be 4k, 3k and 2k. Value = 4k + 0.5 × 3k + 0.25 × 2k = 6k = 24. So k = 4 and the 50 paise coins = 3 × 4 = 12.
- A and B start a business with Rs 8000 and Rs 12,000 for the same period. They earn a profit of Rs 8000. What is A's share?
- A. Rs 2240
- B. Rs 2880
- C. Rs 2560
- D. Rs 3200
Show answer and explanation
Answer: D. Rs 3200
Profit is shared in the ratio 2 : 3. A's share = 8000 × 8000/20000 = Rs 3200.
- The income and expenditure of a person are in the ratio 5 : 4. If he saves Rs 5000, find his income.
- A. Rs 32,500
- B. Rs 17,500
- C. Rs 25,000
- D. Rs 22,500
Show answer and explanation
Answer: C. Rs 25,000
Income : expenditure = 5 : 4, so savings = 1 parts = 5000. Income = 5 × 5000 = Rs 25,000.
- If A : B = 3 : 4, B : C = 7 : 8 and C : D = 2 : 5, find A : D.
- A. 43 : 160
- B. 21 : 80
- C. 21 : 40
- D. 80 : 21
Show answer and explanation
Answer: B. 21 : 80
A : D = (3 × 7 × 2) : (4 × 8 × 5) = 42 : 160 = 21 : 80.
- Rs 3600 is divided among A, B and C in the ratio 2 : 3 : 7. How much does B get?
- A. Rs 1080
- B. Rs 810
- C. Rs 990
- D. Rs 900
Show answer and explanation
Answer: D. Rs 900
Total parts = 12, one part = 3600/12 = 300. B gets 3 × 300 = Rs 900.
- The present ages of A and B are in the ratio 3 : 4. After 5 years the ratio will be 4 : 5. What is A's present age?
- A. 19 years
- B. 11 years
- C. 17 years
- D. 15 years
Show answer and explanation
Answer: D. 15 years
Let ages be 3k and 4k. (3k + 5)/(4k + 5) = 4/5 gives k = 5. A = 3 × 5 = 15 years.