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Quant – Ratio & Proportion – Set 3
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.
- Rs 4800 is divided among A, B and C in the ratio 2 : 3 : 7. How much does A get?
- A. Rs 960
- B. Rs 800
- C. Rs 560
- D. Rs 640
Show answer and explanation
Answer: B. Rs 800
Total parts = 12, one part = 4800/12 = 400. A gets 2 × 400 = Rs 800.
- The sum of two numbers is 32 and they are in the ratio 3 : 5. Find the larger number.
- A. 24
- B. 18
- C. 20
- D. 14
Show answer and explanation
Answer: C. 20
One part = 32/8 = 4. Larger number = 5 × 4 = 20.
- If A : B = 2 : 3 and B : C = 3 : 4, find A : B : C.
- A. 4 : 3 : 2
- B. 2 : 3 : 4
- C. 2 : 3 : 7
- D. 12 : 19 : 26
Show answer and explanation
Answer: B. 2 : 3 : 4
Make B equal: A : B = 6 : 9 and B : C = 9 : 12. So A : B : C = 2 : 3 : 4.
- Find x if 4 : 9 = 8 : x.
- A. 24
- B. 18
- C. 16
- D. 22
Show answer and explanation
Answer: B. 18
x = 9 × 8/4 = 18.
- Find the third proportional to 2 and 10.
- A. 55
- B. 50
- C. 65
- D. 40
Show answer and explanation
Answer: B. 50
Third proportional = 10²/2 = 100/2 = 50.
- A bag contains Re 1, 50 paise and 25 paise coins in the ratio 4 : 6 : 8. If the total value is Rs 108, how many 50 paise coins are there?
- A. 72
- B. 65
- C. 58
- D. 79
Show answer and explanation
Answer: A. 72
Let the coins be 4k, 6k and 8k. Value = 4k + 0.5 × 6k + 0.25 × 8k = 9k = 108. So k = 12 and the 50 paise coins = 6 × 12 = 72.
- A and B start a business with Rs 4000 and Rs 6000 for the same period. They earn a profit of Rs 20,000. What is A's share?
- A. Rs 9600
- B. Rs 8000
- C. Rs 7200
- D. Rs 5600
Show answer and explanation
Answer: B. Rs 8000
Profit is shared in the ratio 2 : 3. A's share = 20,000 × 4000/10000 = Rs 8000.
- The income and expenditure of a person are in the ratio 5 : 4. If he saves Rs 2000, find his income.
- A. Rs 10,000
- B. Rs 12,000
- C. Rs 7000
- D. Rs 8000
Show answer and explanation
Answer: A. Rs 10,000
Income : expenditure = 5 : 4, so savings = 1 parts = 2000. Income = 5 × 2000 = Rs 10,000.
- In a class of 120 students, the ratio of boys to girls is 5 : 3. How many girls are there?
- A. 52
- B. 57
- C. 45
- D. 49
Show answer and explanation
Answer: C. 45
One part = 120/8 = 15. Girls = 3 × 15 = 45.
- If A : B = 2 : 5, B : C = 3 : 4 and C : D = 1 : 3, find A : D.
- A. 10 : 1
- B. 1 : 2
- C. 7 : 60
- D. 1 : 10
Show answer and explanation
Answer: D. 1 : 10
A : D = (2 × 3 × 1) : (5 × 4 × 3) = 6 : 60 = 1 : 10.