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:
167 comments Page 8 of 17.
Thejaswi said:
1 decade ago
A+B=1210
(4/15)A=(2/15)B
A=(15/4)(2/5)B
A/B=3/2
Take it as A/3=B/2
Adding denominators 5P.
So,5P=1210
P=242
B's Amount is 2P i.e,2(242)=484
(4/15)A=(2/15)B
A=(15/4)(2/5)B
A/B=3/2
Take it as A/3=B/2
Adding denominators 5P.
So,5P=1210
P=242
B's Amount is 2P i.e,2(242)=484
Deepthi palreddy said:
1 decade ago
Thank you sreedhar.
Pradeep said:
1 decade ago
Can anyone please explain, how u can find out the ration of A & B because in question they only tell that if of A's amount is equal to of B's amount. and also explain meaning of this line and how u can find that (4/15)A=(2/15)B .
Sakshi said:
1 decade ago
What is the significance of finding ratio here. As B's share is calculated directly further in answer. Please explain.
Brajesh said:
1 decade ago
Through ratio share can be divided accordingly as A:B=3:2 B' SHARE will be 2/5*1210=484.
Ramana said:
1 decade ago
A:B=3:2
SO, B only share equal to 2/5*1210=2*242=484.
SO, B only share equal to 2/5*1210=2*242=484.
NITESH MALAKAR said:
1 decade ago
A+B=1210.
A:B=3:2.
A/B=3/2.
2A=3B.
Therefore, A=(3B)/2.
And substituting, (3B/2)+B=1210.
And hence, 5B=2420 => B=484 Rs.
A:B=3:2.
A/B=3/2.
2A=3B.
Therefore, A=(3B)/2.
And substituting, (3B/2)+B=1210.
And hence, 5B=2420 => B=484 Rs.
Ranjeet Kaur said:
1 decade ago
Let A have x Rs.
Let B have y Rs.
Acc. to Question,
x + y = 1210-----------------1.
Now as per condition,
4/15 x = 2/5 y.
therefore, x = 2/5 y X 15/4.
x = 3/2 y.
Put this value in equation 1.
3/2 y + y =1210.
3y + 2y = 2420.
5y = 2420.
y = 484.
Therefore B has amount of Rs. 484/-.
Let B have y Rs.
Acc. to Question,
x + y = 1210-----------------1.
Now as per condition,
4/15 x = 2/5 y.
therefore, x = 2/5 y X 15/4.
x = 3/2 y.
Put this value in equation 1.
3/2 y + y =1210.
3y + 2y = 2420.
5y = 2420.
y = 484.
Therefore B has amount of Rs. 484/-.
IMU said:
1 decade ago
Dude why to are going in long way.
The shortcut:
He ask about B share,
Directly 1210 x 2/5 = 484.
The shortcut:
He ask about B share,
Directly 1210 x 2/5 = 484.
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.
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