Aptitude - Percentage - Discussion

Discussion Forum : Percentage - General Questions (Q.No. 15)
15.
The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percent increase of population per year is:
4.37%
5%
6%
8.75%
Answer: Option
Explanation:

Increase in 10 years = (262500 - 175000) = 87500.

Increase% = 87500 x 100 % = 50%.
175000

Required average = 50 % = 5%.
10

Discussion:
93 comments Page 7 of 10.

Sunil said:   1 decade ago
1,20,000 is the right answer.
138915 = X(1+5/100)^(10).
Calculate X = 1,20,000.

Sukumar Natarajan said:   3 years ago
Here, we have to use the formula P = (1+r/100) ^n.

So, the Answer is: 4.23%.
(10)

Sheshu said:   1 decade ago
%increase=difference/lowvalue*100.

%decrease=difference/highvalue*100.

Mohsin said:   9 years ago
10% is equal to 30.

While 100% is equal to?
Then,
30 * 100/10 = 300.

Aparna said:   1 decade ago
How 50/10 came in the last step. Can anyone help me to understand?

AgentSteel said:   9 years ago
20 + 60 + 10 = 90%,

Rem 10% = 30,

Therefore, total salary = 300.

Rajesh said:   9 years ago
Why 175000 is taken in the denominator instead of taking 2,62,500?

Karunakar said:   4 years ago
How do you know for taking the 10 years? Please explain me.
(2)

Satwika said:   9 years ago
Why should we take 17,5000 in denominator why not 26,25000?

Rahul said:   1 decade ago
@vijay.

Ya you are right vijay. Watt aparna did is wrong.


Post your comments here:

Your comments will be displayed after verification.