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:
161 comments Page 6 of 17.
Varsha said:
1 decade ago
I m not getting anything.
Please can anyone explain me that how can we calculate ratio of A and B?
Please can anyone explain me that how can we calculate ratio of A and B?
Rap said:
1 decade ago
I don't get it. How do you find B's amount directly?
Jen said:
1 decade ago
From where did you get the 3/2?
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.
Karthik said:
1 decade ago
Can some one explain how to derive A:B = 3:2?
Omkar said:
1 decade ago
Why A:B ratio we find?
Shriya said:
1 decade ago
Can you please explain me this?
Masaujer lara said:
1 decade ago
Hi can you help me this topic please?
Swapnil said:
1 decade ago
But I still don't understand why we first calculate the ratio, final answer depend on the formula.
(1)
S.gowthami said:
1 decade ago
Let's us take both the difference (4/15-2/5=2/10).
The difference is 2/10 their total amount of them is 1210.
Take difference and multiply with the original amount.
= 2/10*1210=484.
This is my point of view if there is any mistake please don't mind.
The difference is 2/10 their total amount of them is 1210.
Take difference and multiply with the original amount.
= 2/10*1210=484.
This is my point of view if there is any mistake please don't mind.
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