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 4 of 6.
Mohit said:
1 decade ago
Why is the answer like this can you tell me?
Abbas said:
9 years ago
Why are we moving 3 of the 2/3 on that side?
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)
Shiva said:
1 decade ago
Any one can tell easy sol for this one?
(1)
Rabab said:
8 years ago
But how cam we eliminate that 100 here?
Vaibhav said:
7 years ago
It is an easy method, Thanks @Nitish
Dhiraj chaurasia said:
1 decade ago
Thanks nitish ilike your sugession.
Radhika said:
1 decade ago
Thanks Nitish. It is so simple now.
Prasanna said:
4 years ago
Thank you for explaining @Nitish.
(4)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers