Discussion
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- Question
x and y are two numbers such that their mean proportion is 8 and third proportion is 512. What is the value of x and y?
Options- A. 2 and 16
- B. 2 and 32
- C. 4 and 32
- D. 4 and 16
- Correct Answer
- 2 and 32
- 1. A shopkeeper earns a profit of 15% after selling a book at 20% discount on the printed price . The ratio of the cost price and printed price of the book is
Options- A. 20:23
- B. 23:20
- C. 16:23
- D. 23:16 Discuss
- 2. A truck covers a distance of 550 metres in one minute where as a bus covers a distance of 33 km in 3/4 hours. Then the ratio of their speeds is :
Options- A. 1:3
- B. 2:3
- C. 3:4
- D. 1:4 Discuss
- 3. Find the fourth proportional to 2, 3, 6.
Options- A. 9
- B. 10
- C. 7
- D. 8 Discuss
- 4. There are 209 doctors and nurses in a hospital. If the ratio of the doctors to the nurses is 11 : 8, then how many nurses are there in the hospital?
Options- A. 88
- B. 96
- C. 108
- D. 121 Discuss
- 5. Which of the following could not be the lengths of the sides of a right angled triangle?
Options- A. 3, 4, 5
- B. 5, 12, 13
- C. 8, 15, 17
- D. 12, 15, 18 Discuss
- 6. If 3A = 7B = 13C, then A : B : C is equal to
Options- A. 21:39:91
- B. 39:91:21
- C. 13:7:3
- D. 91:39:21 Discuss
- 7. What number should be added to each of the numbers 94, 24, 100 and 26, so that the resulting numbers are in continued proportion?
Options- A. 10
- B. 11
- C. 9
- D. 8 Discuss
- 8. Rs 6300 is divided among A, B and C in the ratio of 1/2 : 1 : 3/5. What is the share (in Rs) of B?
Options- A. 3300
- B. 2700
- C. 3000
- D. 4200 Discuss
- 9. If 6A = 7B = 5C; find A : B : C
Options- A. 42:30:35
- B. 30:35:42
- C. 5:7:6
- D. 35:30:42 Discuss
- 10. If Gaganjyot's salary is 7/6 times of Hafiz's and Sayed's is 8/7 times of Hafiz's, what is the ratio of Gaganjyot's salary to Sayed's.
Options- A. 49:48
- B. 3:4
- C. 4:3
- D. 48:49 Discuss
Ratio and Proportion problems
Search Results
Correct Answer: 16:23
Correct Answer: 3:4
Correct Answer: 9
Correct Answer: 88
Explanation:
Given,
The ratio of the doctors to the nurses is 11 : 8
Number of nurses = 8/19 x 209 = 88.
Correct Answer: 12, 15, 18
Explanation:
Using Pythagoras theorem we can see that 122 + 152 is not equal to 182
Neither is 102 + 242 = 252
Correct Answer: 91:39:21
Correct Answer: 11
Correct Answer: 3000
Correct Answer: 35:30:42
Correct Answer: 49:48
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