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 16 of 17.
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.
Thiru said:
6 years ago
2/5(1210) = 2420/5 = 484.
Smit patel said:
6 years ago
A+B=1210
4A/15=2B/5
A=3B/2.
3B/2+B=1210
5B=2420
B=484.
4A/15=2B/5
A=3B/2.
3B/2+B=1210
5B=2420
B=484.
Prince said:
5 years ago
Very clear explanation, thanks @Sridhar.
Anushka said:
5 years ago
Thanks for explaining the answer @Sridhar.
Nazeem khan said:
5 years ago
Thank you @Bhuvi.
Mahender said:
5 years ago
Thanks @Sridhar.
Yogesh said:
5 years ago
a:b = 3:2 then
b= 2/5 how? Explain.
b= 2/5 how? Explain.
Harshita said:
5 years ago
Why 4/15 turned to 15/4? Please explain.
Utkalika said:
4 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.
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