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.
Yhtsawakeviv said:
5 years ago
We can simply write;
1/4x + 1/10 * 2x + 1/20 * 3x = 30
Then after multiplying and taking LCM.
5x + 4x + 3x = 30 * 20,
x = 600/12,
x = 50.
So, No. of 5p coins = 3x = 3*50 = 150.
1/4x + 1/10 * 2x + 1/20 * 3x = 30
Then after multiplying and taking LCM.
5x + 4x + 3x = 30 * 20,
x = 600/12,
x = 50.
So, No. of 5p coins = 3x = 3*50 = 150.
(1)
Bala said:
9 years ago
25p : 10p : 5p = 1 : 2 : 3 = Rs.30.
1rs = 4 * 25p (or) 25p = 1/4.
Similarly, 10p = 1/10 and 5p = 1/20.
x/4 + 2x/10 + 3x/20 = 30.
x = 50
Answer:
25p = 50.
10p = 100.
5p = 150.
1rs = 4 * 25p (or) 25p = 1/4.
Similarly, 10p = 1/10 and 5p = 1/20.
x/4 + 2x/10 + 3x/20 = 30.
x = 50
Answer:
25p = 50.
10p = 100.
5p = 150.
Kapya said:
1 decade ago
I need an explanation for this oners 107.25 is made up of rupee, 50 paise and 25 paise coins and the number of coins are in the proportion 5, 6, 7 then the number of copies is?
Bhuvi said:
4 years ago
I think it's simple because see the question what they ask how many 5p coins?
i.e 25p, 10p, 5p the ratio 1:2:3 the cost is 30rps so we can easily solve this. 5*30 =150.
i.e 25p, 10p, 5p the ratio 1:2:3 the cost is 30rps so we can easily solve this. 5*30 =150.
(16)
Issahaku said:
1 decade ago
In-fact I just went though various solutions to the problem. My question now is, is 300 or 150 the answer? We are confused which is which. So any further explanation?
Sandeep said:
9 years ago
Please answer.
A bag contains coins of 1rs, 50p, 25p in the ratio of their value as 13:11:7.
The total number of coins in the bag are 378, find 25p coins in a bag.
A bag contains coins of 1rs, 50p, 25p in the ratio of their value as 13:11:7.
The total number of coins in the bag are 378, find 25p coins in a bag.
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.
Samiran biswas said:
5 years ago
1/4:2/10:3/20
5:4:3
Then ,
The Questions asked that, find the value in coins of 5 paise
(3/12)*30.
=15/2 in ripped.
And in coins 15/2*20= 150 is the answer.
5:4:3
Then ,
The Questions asked that, find the value in coins of 5 paise
(3/12)*30.
=15/2 in ripped.
And in coins 15/2*20= 150 is the answer.
Remi said:
7 years ago
1 Rupee = 100 paise
30Rs = 3000 paise.
25p : 10p : 5p = 1 : 2 : 3,
25*X + 10*2X + 5*3X = 3000,
60X = 3000,
X = 50,
25*50 = 1250,
10*2*50 = 1000,
5*3*50 = 750.
30Rs = 3000 paise.
25p : 10p : 5p = 1 : 2 : 3,
25*X + 10*2X + 5*3X = 3000,
60X = 3000,
X = 50,
25*50 = 1250,
10*2*50 = 1000,
5*3*50 = 750.
Archit said:
5 years ago
@Tomoriba
How did you got 3/6*300 p =150,
It should be 3/6*3000p =150,
Here you multiplied 30 * 10 p which is wrong.
Shouldn't we multiply 30*1000?
How did you got 3/6*300 p =150,
It should be 3/6*3000p =150,
Here you multiplied 30 * 10 p which is wrong.
Shouldn't we multiply 30*1000?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers