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 5 of 12.
Soham said:
8 years ago
Why we multiping coin value like 25*x/100?
Nagamani said:
8 years ago
Even I am not getting clarity. Can any one give the correct explanation for this, please?
Sunny said:
8 years ago
Why are we taking 2, 2x, 3x why not x, y, z?
Pooja said:
8 years ago
A bag contains Rs 5 coins, Rs 2 coins with total amount number of coins being 52, and the total amount is 125. The number of five rupees and two rupee coins are 37. The number of Rs 5coins are?
Can anyone answer it?
Can anyone answer it?
Prasun kr chatterjee said:
8 years ago
Why 100 is divided to all & how 60x comes?
Gopinathan said:
8 years ago
In a row coins like this,
1------- 2.-------3
25p x 1-------10p x 2-------5p x 3.
For one row 60 p.
Re 1. = 100 p,
Rs.30= 3000 p,
Therefore. 3000/60 = 50 row.
per row 3 x 5p.
So answer is 50 x 3 =150 is correct.
1------- 2.-------3
25p x 1-------10p x 2-------5p x 3.
For one row 60 p.
Re 1. = 100 p,
Rs.30= 3000 p,
Therefore. 3000/60 = 50 row.
per row 3 x 5p.
So answer is 50 x 3 =150 is correct.
Inderpal Singh said:
8 years ago
@Habib.
Please guide me where I am going wrong:
Total Amount is Rs 30 = 30 x 60 = 1800p.
Ratio of the coins is 1:2:3 for 25p, 10p, 5p.
Assuming total coins count is n:
(25 x (1/6)n) + (10 x (2/6)n) + (5 x (3/6)n) = 1800.
(25n + 20n + 15n)/6 = 1800.
60n/6 = 1800.
n = 180.
3/6n = 90.
Where is the wrong?
Please guide me where I am going wrong:
Total Amount is Rs 30 = 30 x 60 = 1800p.
Ratio of the coins is 1:2:3 for 25p, 10p, 5p.
Assuming total coins count is n:
(25 x (1/6)n) + (10 x (2/6)n) + (5 x (3/6)n) = 1800.
(25n + 20n + 15n)/6 = 1800.
60n/6 = 1800.
n = 180.
3/6n = 90.
Where is the wrong?
Vishwas said:
8 years ago
It is 380rs @Virender.
Virender said:
8 years ago
I have a question, Please solve this.
A bag contains 50 paisas 20 paisas 10 paisas in ratio of 5:3:1 if the total amount in the bag is 640rs. Find the difference in the amounts contributed by 50 paisas and 20 paisas?
A bag contains 50 paisas 20 paisas 10 paisas in ratio of 5:3:1 if the total amount in the bag is 640rs. Find the difference in the amounts contributed by 50 paisas and 20 paisas?
M rahaman said:
9 years ago
A bag consists of one rupee, 50 paise and 5 paise coins in the ratio 3:5:7. If their total value sum to Rs. 23-40, then the number of 50 paise coins in that bag is?
Explain the solution.
Explain the solution.
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