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 5 of 17.
Sridhar said:
1 decade 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 Rs.
(4/15)A=(2/5)B
2A=3B
Therefore, A=(3B)/2
and substituting, (3B/2)+B=1210
and hence, 5B=2420 => B=484 Rs.
(4)
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.
Nitesh Nandwana said:
1 decade ago
@Hi Gauri
Don't confuse about 2/5 it isn't that which is in question statement while it is (A:B=3:2 so B's =2/5)
Don't confuse about 2/5 it isn't that which is in question statement while it is (A:B=3:2 so B's =2/5)
Sikander said:
9 years ago
It is simple that the share of b is 2/5, it is understood that the share of a is 3/5. So apply the % and find out.
Parvathi said:
10 years ago
Hi please tell me how you got ratio 4/15 for A and 2/15 for B they haven't mention anything in the question.
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.
AKASH said:
6 months ago
(4/5)A = (2/5)B,
then A/B = 3/2,
or A:B = 3:2.
B's amount = (2/(3+2)) × 1210,
= 484.
then A/B = 3/2,
or A:B = 3:2.
B's amount = (2/(3+2)) × 1210,
= 484.
(12)
Ayush p maheshwari said:
10 years ago
We have to just divide 2/5 from 1210. To prove that they both are not equal that's why they take ratio.
Raghuveer said:
9 years ago
The simple way is;
2/5 * 15/4 = 3/2.
A : B = 3 : 2.
5 -----> 1210.
then 2 --------> 1210 * 2/5 = 484.
2/5 * 15/4 = 3/2.
A : B = 3 : 2.
5 -----> 1210.
then 2 --------> 1210 * 2/5 = 484.
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?
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