Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 15)
15.
In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
Answer: Option
Explanation:
Let the number of 25 p, 10 p and 5 p coins be x, 2x, 3x respectively.
| Then, sum of their values = Rs. |  |
25x | + | 10 x 2x | + | 5 x 3x |  |
= Rs. | 60x |
| 100 | 100 | 100 | 100 |
 |
60x | = 30 |  x = |
30 x 100 | = 50. |
| 100 | 60 |
Hence, the number of 5 p coins = (3 x 50) = 150.
Discussion:
117 comments Page 6 of 12.
Prakashjai said:
9 years ago
What is the Ratio of 40 paise to Rs 3?
Anish said:
9 years ago
What if the quantities are given in rupees but not in paisa's?
Sanjit said:
9 years ago
Why are we dividing them by 100?
Sandhya said:
9 years ago
Friends it can be solved from options as:
We have to find out the number 5p coins,
So,
200/5 = 40
100/5 = 20
50/5 = 10
150/5 = 30
Therefore the answer is 150.
We have to find out the number 5p coins,
So,
200/5 = 40
100/5 = 20
50/5 = 10
150/5 = 30
Therefore the answer is 150.
Tluanga Chhangte said:
9 years ago
Can anyone prove after your calculation, the sum of all coins comes rs 30?
Savita said:
9 years ago
Can anyone solve this?
3 persons decided to have dinner together. The first person had 3 cakes, the second person had 5 cakes while the third person had nothing but being true friends they wanted to share equally among themselves but the third person wanted to compensate them with 8 gold coins that he had. Find how many coins each of them should get?
3 persons decided to have dinner together. The first person had 3 cakes, the second person had 5 cakes while the third person had nothing but being true friends they wanted to share equally among themselves but the third person wanted to compensate them with 8 gold coins that he had. Find how many coins each of them should get?
Sutha said:
9 years ago
Q1)-A bag contains 1-rupee , 50 paise and 25 paise coins in the ratio 8 : 5 :3. If the total amount of money in the box is Rs 112.50 , the number of 50 paise coins is?
Answer the question.
Answer the question.
(1)
Rajkumar said:
9 years ago
To convert them into rupees.
You can either convert rupee to paise or paise rupee to make them in the same unit.
Here, an interesting fact is that. From the given option the only divisible by 3 is 150. So without calculating also we can answer the question in quick time.
You can either convert rupee to paise or paise rupee to make them in the same unit.
Here, an interesting fact is that. From the given option the only divisible by 3 is 150. So without calculating also we can answer the question in quick time.
Deepak bhadani said:
9 years ago
Solution :-
25ps 10ps 5ps
1 : 2 : 3
--------------------
Multiply and convert to rupees.
25 * 1 : 10 * 2 : 5 * 3,
25 : 20. : 15.
Sum of rupees 60 paisa,
Then find 5 paisa cine there.
Qty * find/given
30 * 5 / .60 = 150.
25ps 10ps 5ps
1 : 2 : 3
--------------------
Multiply and convert to rupees.
25 * 1 : 10 * 2 : 5 * 3,
25 : 20. : 15.
Sum of rupees 60 paisa,
Then find 5 paisa cine there.
Qty * find/given
30 * 5 / .60 = 150.
Ritika said:
9 years ago
Why has the total sum been divided by 100?
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