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 | ![]() |
30 x 100 | = 50. |
100 | 60 |
Hence, the number of 5 p coins = (3 x 50) = 150.
Discussion:
117 comments Page 12 of 12.
Rabia said:
4 years ago
Rs.1=100p.
Rs.30=3000p,
Total Paisas inside = 3000p,
Sum of ratios= 1+2+3=6.
For the third ratio i.e for 5p, the equation will be: 3/6*3000÷ 3= 50.
Rs.30=3000p,
Total Paisas inside = 3000p,
Sum of ratios= 1+2+3=6.
For the third ratio i.e for 5p, the equation will be: 3/6*3000÷ 3= 50.
(12)
Kartik pandey said:
3 years ago
5 paisa coin ratio value is 3.
So the answer must be multiple of 3 first try to check its multiple.
So the answer must be multiple of 3 first try to check its multiple.
(42)
Deepak Kumar Biswal said:
3 years ago
25p. 10p. 5p.
1/4 : 2/10 : 3/20/
LCM=20, then the ratio is 5:4:3.
Sum of the ratio =12---------60
1---------5
Then 5 = 25,4 = 20,3 = 15.
Convert into coin then 5p coin = 100 * 15/20 = 300.
That's the right answer.
1/4 : 2/10 : 3/20/
LCM=20, then the ratio is 5:4:3.
Sum of the ratio =12---------60
1---------5
Then 5 = 25,4 = 20,3 = 15.
Convert into coin then 5p coin = 100 * 15/20 = 300.
That's the right answer.
(18)
Umer said:
2 years ago
30 rupees = 3000p.
The sum of three ratios (1:2:3)=6.
1 ratio =3000/6= 500 paisa.
When the 1 ratio is equal to 500 paise then the 3 ratio is equal to 500×3 which is equal to 1500 paisa.
And to convert 1500 paisa into 5 paisa coins we divide 1500 by 5 which is equal to 300.
Hence, 300 is the right answer.
The sum of three ratios (1:2:3)=6.
1 ratio =3000/6= 500 paisa.
When the 1 ratio is equal to 500 paise then the 3 ratio is equal to 500×3 which is equal to 1500 paisa.
And to convert 1500 paisa into 5 paisa coins we divide 1500 by 5 which is equal to 300.
Hence, 300 is the right answer.
(49)
Manoj Gyawali said:
1 year ago
Let,
25p=1x,
10p=2x and 5p=3x.
Rs 30 = 30 * 100 = 3000p,
We know that;
1x + 2x + 3x = 3000,
x= 50.
Now.
5p= 3x.
5p= 3*50.
5p= 150.
25p=1x,
10p=2x and 5p=3x.
Rs 30 = 30 * 100 = 3000p,
We know that;
1x + 2x + 3x = 3000,
x= 50.
Now.
5p= 3x.
5p= 3*50.
5p= 150.
(18)
David Grace said:
1 year ago
To solve this problem, we first need to find the total value of each type of coin and then use the given information to determine the number of 5 p coins.
Let's denote:
-( x) as the number of 25 p coins,
-( 2x) as the number of 10 p coins (since it's twice the number of 25 p coins),
-( 3x) as the number of 5 p coins (since it's thrice the number of 25 p coins).
The total value of the coins can be expressed as:
[ 25x + 10(2x) + 5(3x) = 3000] (converted Rs. 30 into paise).
Solve for (x):
[ 25x + 20x + 15x = 3000]
[ 60x = 3000]
[ x = frac{3000}{60}]
[x = 50]
Now, we know that there are 50 coins of 25 paise each.
So, the number of 5 paise coins is ( 3x = 3 * 50 = 150).
Therefore, there are 150 - 5 paise coins in the bag.
Let's denote:
-( x) as the number of 25 p coins,
-( 2x) as the number of 10 p coins (since it's twice the number of 25 p coins),
-( 3x) as the number of 5 p coins (since it's thrice the number of 25 p coins).
The total value of the coins can be expressed as:
[ 25x + 10(2x) + 5(3x) = 3000] (converted Rs. 30 into paise).
Solve for (x):
[ 25x + 20x + 15x = 3000]
[ 60x = 3000]
[ x = frac{3000}{60}]
[x = 50]
Now, we know that there are 50 coins of 25 paise each.
So, the number of 5 paise coins is ( 3x = 3 * 50 = 150).
Therefore, there are 150 - 5 paise coins in the bag.
(16)
Prosenjit Sikdar said:
8 months ago
1 : 2: 3
Let real value is;
k:2k:3k.
So,
K + 2k + 3k = 300(30rupees = 300paisa).
6k = 300
k = 50
3k = 3 * 50 = 150.
Let real value is;
k:2k:3k.
So,
K + 2k + 3k = 300(30rupees = 300paisa).
6k = 300
k = 50
3k = 3 * 50 = 150.
(33)
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