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 10 of 12.
Atul1487 said:
1 decade ago
25p : 10p : 5p
Coin = 1 : 2 : 3
______________
Total = 0.25 + 0.20 + 0.15 = 0.60
5p = 30x3x100/60.
= 150 coins.
Coin = 1 : 2 : 3
______________
Total = 0.25 + 0.20 + 0.15 = 0.60
5p = 30x3x100/60.
= 150 coins.
Atul1487 said:
1 decade ago
1 Rs = 100.
30 Rs = 3000.
So 1+2+3 = 6.
3/6*3000 = 150.
5p coins is 150.
30 Rs = 3000.
So 1+2+3 = 6.
3/6*3000 = 150.
5p coins is 150.
Meghana said:
1 decade ago
Can we solve this way.
There is 1 25 paisa, 2 10 paisa, 3 15 paisa.
That means 25:20:15.
25+20+15 = 60.
For 60ps........ 30
100...... ?
100*30/60 = 50
Total coins is 50 then no of 5ps coins = 3*50 = 150.
There is 1 25 paisa, 2 10 paisa, 3 15 paisa.
That means 25:20:15.
25+20+15 = 60.
For 60ps........ 30
100...... ?
100*30/60 = 50
Total coins is 50 then no of 5ps coins = 3*50 = 150.
Avi said:
1 decade ago
Why can't we do like this :
25p : 10p : 5p in ratio of 1:2:3 to form total sum of 30 rupee.
So we can say that 1/6 th of 30 rupees form by 25p coins (i.e 5 rupee),
2/6th of 30 rupee form by 10p coins (i.e 10 rupee),
3/6 th of 30 rupee form by 5p coins (i.e 15 rupee).
To get 1 rupee we need 4 25p coins-for 5 * 4 = 20 coins of 25p for 5 rupee.
To get 1 rupee we need 10 10p coins-for 10 * 10 = 100 coins of 10p for 10 rupee.
To get 1 rupee we need 20 5p coins-for 15 * 20 = 300 coins of 5p for 15 rupee.
Any suggestions.
25p : 10p : 5p in ratio of 1:2:3 to form total sum of 30 rupee.
So we can say that 1/6 th of 30 rupees form by 25p coins (i.e 5 rupee),
2/6th of 30 rupee form by 10p coins (i.e 10 rupee),
3/6 th of 30 rupee form by 5p coins (i.e 15 rupee).
To get 1 rupee we need 4 25p coins-for 5 * 4 = 20 coins of 25p for 5 rupee.
To get 1 rupee we need 10 10p coins-for 10 * 10 = 100 coins of 10p for 10 rupee.
To get 1 rupee we need 20 5p coins-for 15 * 20 = 300 coins of 5p for 15 rupee.
Any suggestions.
Kkp said:
1 decade ago
Please can anybody tell that in the main solution why total money is written as 60x/100?
Chandu said:
1 decade ago
@Cutie.
Let A, B, C Shares be x, y, z respectively.
Then 8x = 12y = 6z.
From above,
x = (3/4)z.
y = (1/2)z.
Total (x+y+z) = 432.
(0.75+0.5+1)z = 432.
2.25z = 432.
z = (432/2.25).
z = 192.
From that,
x= [(3/4)*192].
= 144.
y = [(1/2)*192].
= 96.
z=192.
x+y+z = 144+96+192 = 432.
Let A, B, C Shares be x, y, z respectively.
Then 8x = 12y = 6z.
From above,
x = (3/4)z.
y = (1/2)z.
Total (x+y+z) = 432.
(0.75+0.5+1)z = 432.
2.25z = 432.
z = (432/2.25).
z = 192.
From that,
x= [(3/4)*192].
= 144.
y = [(1/2)*192].
= 96.
z=192.
x+y+z = 144+96+192 = 432.
Cutie said:
1 decade ago
Can someone please help me out in solving this question: Rs 432 is divided amongst three workers AB and C such that 8 times As share is equal to 12 times B's share is equal to 6 times C's share. how much did A get. Please help out.
TEJU said:
1 decade ago
1 Rs = 100.
30 Rs = 3000.
So 1+2+3 = 6.
3/6*3000 = 150.
5p coins is 150.
30 Rs = 3000.
So 1+2+3 = 6.
3/6*3000 = 150.
5p coins is 150.
Rajesh meena said:
1 decade ago
Totally we have Rs.30 = 3000p.
25p, 10p, 5p are in ratio of 1:2:3 .
We can also write it as,
Coins of 25p = x.
Coins of 10p = 2x.
Coins of 5p = 3x.
25(x)+10(2x)+5(3x) = 3000.
x = 50.
No. of coins of 5p = 3*50 = 150.
25p, 10p, 5p are in ratio of 1:2:3 .
We can also write it as,
Coins of 25p = x.
Coins of 10p = 2x.
Coins of 5p = 3x.
25(x)+10(2x)+5(3x) = 3000.
x = 50.
No. of coins of 5p = 3*50 = 150.
Anil chauhan said:
1 decade ago
25p : 10p : 5p
Coin = 1 : 2 : 3
______________
total = .25 + .20 + .15 = .60
5p = 30x3x100/60.
= 150 coins.
Coin = 1 : 2 : 3
______________
total = .25 + .20 + .15 = .60
5p = 30x3x100/60.
= 150 coins.
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