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 4 of 12.
Janu said:
7 years ago
I can't understand. Please, anyone, help me to get this.
Ronie said:
7 years ago
The easiest way is to convert 30 to paisa i.e 3000p.
Now no of 5p coin is( 3/1+2+3)*3000,
=3/6*3000=150.
Now no of 5p coin is( 3/1+2+3)*3000,
=3/6*3000=150.
Akash sahoo said:
7 years ago
25p 10p 5p
1 : 2 : 3
If 25p*1=25p
10p*2=20p
5p*3=15p.
60p --> 30
1 --> 30/0.60p=50 piece,
So, 3---------50*3 = 150pieces.
1 : 2 : 3
If 25p*1=25p
10p*2=20p
5p*3=15p.
60p --> 30
1 --> 30/0.60p=50 piece,
So, 3---------50*3 = 150pieces.
Jalandhar said:
7 years ago
The coins are 25p, 10p, 5p.
So ratio of value among these coins is 25:10:5 = 5:2:1
The ratio of coins in the bag is 1:2:3,
Multiply both ratios.
1:2:3
5:2:1
= 5:4:3.
5p coins are = 3/12 * 30 = 7.5 rupees.
For 1 rupee 20 5p coins, then for 7.5 rupees 5p coins = 7.5*20=150.
So ratio of value among these coins is 25:10:5 = 5:2:1
The ratio of coins in the bag is 1:2:3,
Multiply both ratios.
1:2:3
5:2:1
= 5:4:3.
5p coins are = 3/12 * 30 = 7.5 rupees.
For 1 rupee 20 5p coins, then for 7.5 rupees 5p coins = 7.5*20=150.
Sourabh Thakur said:
7 years ago
According to me;
By solving by N.R.V.
25p ------- 10p ------- 5p -------25p+10p+5p
n- 1 ------- 2 ------- 3
r- 1/1 ------- 1/2 ------- 1/3
v- 1 ------- 1 ------- 1 =>3*10=30.
So, the total no coin of 5p are 3*10=30.
By solving by N.R.V.
25p ------- 10p ------- 5p -------25p+10p+5p
n- 1 ------- 2 ------- 3
r- 1/1 ------- 1/2 ------- 1/3
v- 1 ------- 1 ------- 1 =>3*10=30.
So, the total no coin of 5p are 3*10=30.
Surya teja said:
7 years ago
x+2x+3x=300ps.
6x=300ps,
X=50ps.
Then 5ps coins=3*50,
=150.
6x=300ps,
X=50ps.
Then 5ps coins=3*50,
=150.
Jess said:
7 years ago
25:10:5= cancel by 5 you get 5:2:1.
Add 5+2+1=8 and add all the coins 25+10+5=40.
40/8=5.
5*30(30p given) =150.
Add 5+2+1=8 and add all the coins 25+10+5=40.
40/8=5.
5*30(30p given) =150.
Ello said:
8 years ago
25p,10p,5p = 1:2:3.
1/6:2/6:3/6,
30* 1/6=5,
30*2/6=10,
30*3/6=15,
5:10:15=50:100:150.
1/6:2/6:3/6,
30* 1/6=5,
30*2/6=10,
30*3/6=15,
5:10:15=50:100:150.
Sandeep said:
8 years ago
Ans should be 300.
1x+2x+3x=30
X=5
5p coinz = 15rs
15rs = 300 coinz of 5paise.
1x+2x+3x=30
X=5
5p coinz = 15rs
15rs = 300 coinz of 5paise.
Jalapathy said:
8 years ago
25p * 1:10p*2:5p*3=25:20:15.
Total coins =25+20+15=60
We convert Rs.30 by Paisa because given values are Paisa.
30*100=3000
Formula
What is asked, given value/what is given
5p in bag?
So
15*3000/60 =750
In our final conclusion is total 5p coin in bag
750/5p. =150 ans.
Total coins =25+20+15=60
We convert Rs.30 by Paisa because given values are Paisa.
30*100=3000
Formula
What is asked, given value/what is given
5p in bag?
So
15*3000/60 =750
In our final conclusion is total 5p coin in bag
750/5p. =150 ans.
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