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:
143 comments Page 2 of 15.
Jyoti said:
1 year ago
Listen @Yogesh.
Take A=3x and B=2x.
5x= 1210 => x= 242.
Then B= 2 * 242= 484 Ans.
Take A=3x and B=2x.
5x= 1210 => x= 242.
Then B= 2 * 242= 484 Ans.
(12)
Akbar said:
1 year ago
Well done. Thanks for explaining.
Sindhu said:
1 year ago
Thank you @Ranjeet Kaur.
AKPARIDA said:
1 year ago
Cleared my doubt. Thank you, @Sridhar and @Bhuvi.
Utkalika said:
2 years ago
@Harshita
4/15 is on the left side.
So when we take it to the right side of the equal sign then we reciprocate it i.e., 4/15 becomes 15/4.
The same rule applies from right to left.
4/15 is on the left side.
So when we take it to the right side of the equal sign then we reciprocate it i.e., 4/15 becomes 15/4.
The same rule applies from right to left.
Harshita said:
2 years ago
Why 4/15 turned to 15/4? Please explain.
Yogesh said:
2 years ago
a:b = 3:2 then
b= 2/5 how? Explain.
b= 2/5 how? Explain.
Megha said:
2 years ago
As a total proportion of B is 2/5 of the total so the proportion of b is = 2.
and total proportion is 5; so A's proportion 5-2 = 3.
And B= 2/5 * total = 2/5*1210 = 484.
And A = 1210- 484 = 726.
Thanks.
and total proportion is 5; so A's proportion 5-2 = 3.
And B= 2/5 * total = 2/5*1210 = 484.
And A = 1210- 484 = 726.
Thanks.
Anomie said:
3 years ago
A+B = 1210.
(4/15)A = (2/5)B,
2A = 3B.
Therefore, A = (3B)/2,
and substituting, (3B/2) + B = 1210,
and hence, 5B=2420 => B = 484.
(4/15)A = (2/5)B,
2A = 3B.
Therefore, A = (3B)/2,
and substituting, (3B/2) + B = 1210,
and hence, 5B=2420 => B = 484.
Mahender said:
3 years ago
Thanks @Sridhar.
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