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:
2 : 5
3 : 5
4 : 5
6 : 7
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:
140 comments Page 11 of 14.

Shafai Rizvi said:   10 years ago
@Harshitta.

It is 1.2 and 1.5 (not 1.15).

So now simplify it,
= 1.2/1.5 (points cancel out).
= 12/15 (cancel out by 3).
= 4/5.

Maha said:   10 years ago
Lets us take c value as 100 then a value is 20% more.
So, c becomes 120
Similarly, b becomes 150 then, 120 : 150 becomes 4:5.

Sameer khan said:   10 years ago
Ganapathy and Ramesh concept are easy and right.

Manish kumar said:   10 years ago
What to do, if asked for third number?

Dibya said:   10 years ago
Sathi concept is good.

Rakesh said:   10 years ago
@Ganapathy concept is very nice.

Anjaney said:   10 years ago
@Kunal.

It is 100 because ratio should be treated as 100.

Shahjahan said:   10 years ago
How you get 120 and 150? Confused. Please help me.

Cik_nani said:   10 years ago
How do you get 120/100? And how do you get the answer 6 over 5? I'm confused. Please clarify me.

Abinash said:   9 years ago
If a and b incomes are in the ratio 9:4. Their expenditure are 8:3. Each saves rs 2500. Then expenditure of b?

Please tell me the answer for this.


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