Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 12)
12.
If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
Answer: Option
Explanation:
| Let 40% of A = | 2 | B |
| 3 |
| Then, | 40A | = | 2B |
| 100 | 3 |
 |
2A | = | 2B |
| 5 | 3 |
| |
A | = |  |
2 | x | 5 |  |
= | 5 |
| B | 3 | 2 | 3 |
A : B = 5 : 3.
Discussion:
26 comments Page 2 of 3.
Subha said:
1 year ago
2A/5 = 2B/3.
2A/5 ×15 = 2B/3×15,
6A = 10B.
A/B = 5/3.
2A/5 ×15 = 2B/3×15,
6A = 10B.
A/B = 5/3.
GITARTHA said:
5 years ago
2A/5*2B/3.
NOW A/B=2/5*3/2,
A:B 3:5.
Then why 3:5 is not correct? please Explain.
NOW A/B=2/5*3/2,
A:B 3:5.
Then why 3:5 is not correct? please Explain.
Aman said:
7 years ago
x,y two number.
40/100*x=2/3y.
2/5*x=2/3*y,
1/5*x=1/3*y,
x=5 y=3.
40/100*x=2/3y.
2/5*x=2/3*y,
1/5*x=1/3*y,
x=5 y=3.
Narsim said:
8 years ago
You are right, thanks @Pratika.
Raghu said:
1 decade ago
why are we not taking as 140 (40+100)in this case??
Tejashri said:
9 years ago
No, @Mehak. It's wrong.
MEHAK said:
9 years ago
A/B = 2/5 X 3/2.
A/B = 6/10.
A/B = 3/5.
Am I right?
A/B = 6/10.
A/B = 3/5.
Am I right?
Sanjeev said:
10 years ago
Please explain me Why you have taken 2b/3?
Swagger said:
1 decade ago
@Kusu you said why not 3:5:
Let say:
2A/5 = 2B/3.
First number being A and second number being B.
The question asked for the ratio of the first number to the second.
That means you got to get it into this form: A/B or A:B.
So rearrange 2A/5 = 2B/3 to get A/B = 5/3.
Therefore the ratio is of A:B is 5:3.
Let say:
2A/5 = 2B/3.
First number being A and second number being B.
The question asked for the ratio of the first number to the second.
That means you got to get it into this form: A/B or A:B.
So rearrange 2A/5 = 2B/3 to get A/B = 5/3.
Therefore the ratio is of A:B is 5:3.
Shrey said:
1 decade ago
Ratio are given as 2:3:5.
200:300:500 (assume).
As 15% (230), 10% (330) and 20% (100) are respective increase in salaries.
New ratio 200:300:500.
230:330:600.
Answer = 23:33:60.
Answer comes in about 15 sec.
200:300:500 (assume).
As 15% (230), 10% (330) and 20% (100) are respective increase in salaries.
New ratio 200:300:500.
230:330:600.
Answer = 23:33:60.
Answer comes in about 15 sec.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers