Aptitude - Percentage - Discussion
Discussion Forum : Percentage - General Questions (Q.No. 8)
8.
Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A : B.
Answer: Option
Explanation:
| 5% of A + 4% of B = | 2 | (6% of A + 8% of B) |
| 3 |
 |
5 | A + | 4 | B | = | 2 |  |
6 | A + | 8 | B |  |
| 100 | 100 | 3 | 100 | 100 |
| |
1 | A + | 1 | B | = | 1 | A + | 4 | B |
| 20 | 25 | 25 | 75 |
| |
|
1 | - | 1 | A = |
|
4 | - | 1 | B |
| 20 | 25 | 75 | 25 |
| |
1 | A = | 1 | B |
| 100 | 75 |
| A | = | 100 | = | 4 | . |
| B | 75 | 3 |
Required ratio = 4 : 3
Video Explanation: YouTube Video
Discussion:
52 comments Page 2 of 6.
Sujith S said:
5 years ago
15A+12 = 16A - 12B pls explain this step.
(2)
Azeem said:
5 years ago
How do you get 4/75? should it not 4/25.
(3)
Ashik said:
5 years ago
Thanks @Nithish.
Pavi said:
5 years ago
Hi,
5A + 4B = 2/3(6A+8B),
15A + 12B = 12A+16B,
15A - 12A = 16B-12B,
3A = 4B,
A/B = 4/3.
So, the answer is 4:3.
5A + 4B = 2/3(6A+8B),
15A + 12B = 12A+16B,
15A - 12A = 16B-12B,
3A = 4B,
A/B = 4/3.
So, the answer is 4:3.
(3)
AMIt said:
5 years ago
5A+4B = 2/3(6A+8B),
15A+12B = 12A+16B,
3A = 4B,
A/B = 4/3.
15A+12B = 12A+16B,
3A = 4B,
A/B = 4/3.
(4)
Pankaj said:
5 years ago
Thank you @Nitish.
Sanjay said:
6 years ago
How we can take 3:4 to 4:3?
Vishal don said:
6 years ago
Thanks @Nitish.
Sankar said:
7 years ago
Thanks @Nithish.
Vaibhav said:
7 years ago
It is an easy method, Thanks @Nitish
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