Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 1)
1.
A and B together have Rs. 1210. If 
of A's amount is equal to 
of B's amount, how much amount does B have?
of A's amount is equal to of B's amount, how much amount does B have?
Answer: Option
Explanation:
| 4 | A | = | 2 | B | |
| 15 | 5 |
 A = |
 |
2 | x | 15 |  B |
| 5 | 4 |
| A = |
3 | B |
| 2 |
| |
A | = | 3 |
| B | 2 |
A : B = 3 : 2.
 B's share = Rs. |
|
1210 x | 2 | |
= Rs. 484. |
| 5 |
Discussion:
162 comments Page 3 of 17.
Sabeel said:
2 months ago
By solving 4A/15 and 2B/5, we will get the ratio 3:2.
So, total 5 parts,
Let's find 1 part that is 1210/5 = 242.
Then for B, the ratio is 2, so multiply it by 2 = 484.
So, total 5 parts,
Let's find 1 part that is 1210/5 = 242.
Then for B, the ratio is 2, so multiply it by 2 = 484.
(17)
Vinay said:
1 decade ago
4/15*A = 2/5*B.
A/B = 3/2.
Ratio scale A B Total amount
3 2 5
*242 *242 *242
26 484 1210
So B share is 484.
A/B = 3/2.
Ratio scale A B Total amount
3 2 5
*242 *242 *242
26 484 1210
So B share is 484.
Sham Khungla said:
9 years ago
Calculate the ratio of milk and water in the new mixture if the quantity of = 35ltr, ratio of milk = 4 : 1, water added = 7ltr, then ratio of resulting mixture = ?
Naomi said:
6 years ago
We can also do it this way;
If 4/15 of A = 2/5 of B then,
1210 * 4/15= 322.6.
Therefore if 322.6 - 0.4 (divide 2/5).
Then x - 0.6 is 483.9 that is 484.
If 4/15 of A = 2/5 of B then,
1210 * 4/15= 322.6.
Therefore if 322.6 - 0.4 (divide 2/5).
Then x - 0.6 is 483.9 that is 484.
Nivetha C said:
9 months ago
4/15A = 2/5B.
a/b = 2/5 * 15/4,
a/b = 3/2,
a:b = 3:2.
3x + 2x = 1210.
5x = 1210.
x = 1210/5.
x = 242.
Sub x value in b.
2(242) = 484.
So the B value is 484.
a/b = 2/5 * 15/4,
a/b = 3/2,
a:b = 3:2.
3x + 2x = 1210.
5x = 1210.
x = 1210/5.
x = 242.
Sub x value in b.
2(242) = 484.
So the B value is 484.
(26)
Vijaysingh said:
1 decade ago
Simply we can solve by simultaneous equation.
A+B = 1210.......equation 1.
(4/15)A = (2/5)B.......equation 2.
(4/15)1210-B = 2/5 B.
B = 484.
That's it.
A+B = 1210.......equation 1.
(4/15)A = (2/5)B.......equation 2.
(4/15)1210-B = 2/5 B.
B = 484.
That's it.
Mr.Issue said:
8 years ago
The problem how 2/5*(1210)comes?
a+b = 1210 and now we got ratio a/b = 3/2,
So,add +1 both side,
a/b+1=3/2+1
a+b/b = 5/2.
Now b=2/5(a+b) = 2/5(1210) = 484.
a+b = 1210 and now we got ratio a/b = 3/2,
So,add +1 both side,
a/b+1=3/2+1
a+b/b = 5/2.
Now b=2/5(a+b) = 2/5(1210) = 484.
Atul1487 said:
1 decade ago
A+B = 1210 ---- 1.
Given,
4/15*A = 2/5*B.
So A = 3/2*B ----- 2.
From 1 & 2.
3/2B+B = 1210.
5B = 1210*2.
B = 1210*2/5.
B = 484 ------ Answer.
Given,
4/15*A = 2/5*B.
So A = 3/2*B ----- 2.
From 1 & 2.
3/2B+B = 1210.
5B = 1210*2.
B = 1210*2/5.
B = 484 ------ Answer.
P harish said:
6 years ago
4/15, 2/5.
Lcm of 15 and 5 = 15.
4/15 * 15 = 4.
2/5 * 15 = 6.
Adding 4 + 6 = 10.
1210 ÷ 10 = 121.
4 * 121 = 484.
6 * 121= 726.
484 + 726 = 1210.
Lcm of 15 and 5 = 15.
4/15 * 15 = 4.
2/5 * 15 = 6.
Adding 4 + 6 = 10.
1210 ÷ 10 = 121.
4 * 121 = 484.
6 * 121= 726.
484 + 726 = 1210.
(1)
Rajesh said:
10 years ago
My questions are:
1. If 2\5*1210 = 484 works for B.
Then A should be 4/15*1210. But it doesn't give the answer.
2. Why we are calculating A:B?
1. If 2\5*1210 = 484 works for B.
Then A should be 4/15*1210. But it doesn't give the answer.
2. Why we are calculating A:B?
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