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- Question
- A, B and C can do a work in 20, 25 and 30 days respectively. They undertook to finish the work together for Rs. 2220, then the share of A exceeds that of B by?
Options- A. Rs. 120
- B. Rs. 180
- C. Rs. 300
- D. Rs. 600
- Correct Answer
- Rs. 180
ExplanationRatio of shares of A, B and C = 1/20 : 1/25 : 1/30 = 15 : 12 : 10
? A's share = Rs.(2220 x 15/37) = Rs. 900
B's share = Rs.(2220 x 12/37) =Rs. 720
Thus, the share of A exceeds that of B by Rs.(900 - 720) = Rs. 180. - 1. A certain amount was divided between Kavita and Reena in the ratio 4 : 3. If Reena's share was Rs. 2400. The amount is?
Options- A. Rs. 5600
- B. Rs, 3200
- C. Rs. 9600
- D. None of these Discuss
- 2. Rs. 5625 is divided among A, B and C so that A may receive 1/2 as much as B and C together receive and B receives 1/4 of what A and C together receive. The share of A is more than that of B by?
Options- A. Rs. 750
- B. Rs. 775
- C. Rs. 1500
- D. Rs. 1600 Discuss
- 3. Three number are in the ratio 3 :4 : 5 . The sum of the largest and the smallest equals the sum of the third and 52. The smallest number is?
Options- A. 20
- B. 27
- C. 39
- D. 52 Discuss
- 4. The sum of three numbers is 68. If the ratio between first and second be 2 : 3 and that between second and third be 5 : 3, then the second number?
Options- A. 30
- B. 20
- C. 58
- D. 48 Discuss
- 5. The Ratio Between the rates of walking of A and B is 2: 3. If the time taken by B to cover a certain distance is 36 minutes, then time taken by A to cover that much distance is?
Options- A. 24min.
- B. 54min
- C. 48min
- D. 21.6min Discuss
- 6. The monthly salary of A, B, C is in the proportion of 2 : 3 : 5. If c's monthly salary is Rs. 1200 more than that of A, then B's annual salary is?
Options- A. Rs. 14400
- B. Rs. 24000
- C. Rs. 1200
- D. Rs. 2000 Discuss
- 7. A bag contains 25 paise,10 paise and 5 paise coins in the ratio 1 : 2 : 3. If their total value is Rs. 30, the number of 5 paise coins is?
Options- A. 50
- B. 100
- C. 150
- D. 200 Discuss
- 8. Two numbers are in the ratio 3 : 5. If each number is increased by 10, the ratio becomes 5 : 7. The numbers are?
Options- A. 3, 5
- B. 7, 9
- C. 13, 22
- D. 15, 25 Discuss
- 9. The ratio between Sumit's and Prakash's age at present is 2 : 3. Sumit is 6 years younger than Prakash. The ratio of Sumit's age to Prakash's age after 6 years will be?
Options- A. 1 : 2
- B. 2 : 3
- C. 3 : 4
- D. 3 : 8 Discuss
- 10. The ages of Vivek and Sumit are in the ratio 2 : 3. After 12 years, their ages wiil be in the ratio 11:15. The age of Sumit is?
Options- A. 32 years
- B. 42 years
- C. 48 years
- D. 56 years Discuss
Ratio and Proportion problems
Search Results
Correct Answer: Rs. 5600
Explanation:
Let their shares be Rs. 4x and Rs. 3x.
Then 3x = 2400
? x = 800
? Total amount = 7x = Rs. 5600
Correct Answer: Rs. 750
Explanation:
? A = (B + C)/2
? B + C = 2 A
? A + B + C = 3A
Thus 3A = 5625
? A = Rs. 1875
Again B = ( A + C )/4
? A + C = 4B
? A + B + C = 5B
? 5B = 5625
? B = Rs. 1125
Thus A's share is more than that of B by Rs. (1875-1125) I.e. Rs. 750.
Correct Answer: 39
Explanation:
Let the numbers be 3N, 4N and 5N.
Then, 5N + 3N = 4N + 52
? 4N = 52
? N = 13
? Then smallest number = 3N = 3 x13 = 39.
Correct Answer: 30
Explanation:
Let the 3 numbers are a, b, c.
Then, a/b = 2/3, b/c = 5/3
? a/b = (2 x 5) / (3 x 5) = 10/15
and b/c = (5 x 3)/(3 x 3) = 15/9
? a : b : c = 10 : 15 : 9
Let the number be 10y, 15y and 9y.
Then, 10y + 15y + 9y = 68
? 34y = 68
? y = 2
? Second number = 15y
= 15 x 2
= 30.
Correct Answer: 54min
Explanation:
Ratio of times taken = 1/2: 1/3
1/2 : 1/3 = y : 36
1/3y = 1/2 x 36
y=54 min
Correct Answer: Rs. 14400
Explanation:
Let the monthly salary of A, B, C be Rs. 2x, Rs.3x and Rs. 5x respectively.
Then, 5x - 2x = 1200
? x = 400
? B's monthly salary = 3x = Rs. 1200
Hence, B's annual salary = Rs. (12 x 1200)= Rs. 14400
Correct Answer: 150
Explanation:
Ratio of their values = 1/4 : 2/10 : 3/20 = 5 : 4 : 3
? Value of 5 paise coins =Rs. (30 x 3/12) = Rs. 7.50
? Number of 5 paise coins = 750/5 = 150
Correct Answer: 15, 25
Explanation:
Let the number be 3a and 5a
Then, (3a + 10) / (5a + 10) = 5/7
? 7(3a + 10) = 5 x (5a + 10)
? 4a = 20
? a = 5
So, the number are 15, 25.
Correct Answer: 3 : 4
Explanation:
Let their ages be 2x and 3x years.
? 3x - 2x = 6
? x = 6
? Sumit's age = 12 years, Prakash's age = 18 years
After 6 years, Sumit's age = 18 years
After 6 Years, prakash's age = 24 years
? Required ratio of their ages = 18 : 24 = 3 : 4
Correct Answer: 48 years
Explanation:
Let their ages be 2x and 3x years
(2x + 12) / (3x + 12) = 11 /15
? 15(2x + 12) = 11(3x + 12)
? 3x = 48
? x = 16
? age of sumit = 3x = 48 years
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