Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 2)
2.
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
Answer: Option
Explanation:
Let the third number be x.
| Then, first number = 120% of x = | 120x | = | 6x |
| 100 | 5 |
| Second number = 150% of x = | 150x | = | 3x |
| 100 | 2 |
 Ratio of first two numbers = |
 |
6x | : | 3x |  |
= 12x : 15x = 4 : 5. |
| 5 | 2 |
Discussion:
134 comments Page 8 of 14.
Simran said:
4 years ago
Let c is 1,
then,
first = 1 + 0.20*1,
second = 1 + 0.50*1,
ratio = 4:5.
then,
first = 1 + 0.20*1,
second = 1 + 0.50*1,
ratio = 4:5.
Sridhar said:
1 decade ago
Why should take the value of third no is 100 only? why not 60, 70, 80.
Saloni said:
3 years ago
Let c 100.
A = 120.
B = 150.
So the ratio of A to B.
120/150.
4 : 5.
A = 120.
B = 150.
So the ratio of A to B.
120/150.
4 : 5.
(154)
FOUAD said:
1 year ago
Let A = 1.2 X.
Let B = 1.5 X.
A/B = 1.2X/1.5X,
A/B = 4/5,
A:B = 4:5.
Let B = 1.5 X.
A/B = 1.2X/1.5X,
A/B = 4/5,
A:B = 4:5.
(15)
NAMAN said:
1 decade ago
Ratio is 1.2 : 1.5 : 1.
= 12 : 15 : 10.
= 4 : 5 : 1.
Hence 4 : 5.
= 12 : 15 : 10.
= 4 : 5 : 1.
Hence 4 : 5.
Narayana Rao Gartam said:
1 decade ago
Consider third number as 100, to do easy and better calculations.
Jaity said:
1 decade ago
But why did we took 120% instead of 20% and 150% in place of 50%?
Ktricia said:
2 years ago
Please explain, how did 6x/5 and 3x/2 became 4:5? Please explain.
(21)
Xyz said:
1 decade ago
20%=1/5
50%=1/2
So ratio should be equal to 1/5:1/2
Ans= 2:5 ?
50%=1/2
So ratio should be equal to 1/5:1/2
Ans= 2:5 ?
(1)
Arya said:
5 years ago
How you get to know that third number is 100? Please explain.
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