Discussion
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- Question
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
- Correct Answer
- 35:30:42
- 1. 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
- 2. 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
- 3. 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
- 4. 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 Discuss
- 5. 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
- 6. 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
- 7. Rs. 782 is divided into 3 parts in the ratio 12:23:34 , the first part is
Options- A. Rs. 182
- B. Rs. 204
- C. Rs. 190
- D. Rs. 196 Discuss
- 8. The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-
Options- A. 1:2
- B. 2:3
- C. 3:4
- D. 3:5 Discuss
- 9. Divide Rs. 80 in the proportion of 3:6:7.
Options- A. Rs. 10, Rs. 35, Rs. 40
- B. Rs. 15, Rs. 30, Rs. 35
- C. Rs. 15, Rs. 35, Rs.30
- D. Rs. 10, Rs. 40, Rs. 35 Discuss
- 10. The ratio of speed of three racers is 3 : 4 : 6. What is the ratio of time taken by the three racers to cover the same distance?
Options- A. 3:4:6
- B. 6:4:3
- C. 4:3:2
- D. 2:3:5 Discuss
Ratio and Proportion problems
Search Results
Correct Answer: 3000
Correct Answer: 11
Correct Answer: 91:39:21
Correct Answer: 2 and 32
Correct Answer: 16:23
Correct Answer: 49:48
Correct Answer: Rs. 204
Correct Answer: 2:3
Explanation:
Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3
Correct Answer: Rs. 15, Rs. 30, Rs. 35
Explanation:
3/16 X 80, 6/16 X 80, 7/16 X 80
? 15, 30, 35
Correct Answer: 4:3:2
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