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:
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 6 of 10.
Shru said:
9 years ago
Guys it's very simple, here they used the formula for % change that is =difference in % ÷ initial value * 100.
SamuelAA said:
10 years ago
If a number is 20% more than the other, how much percent is less than the first?
Can somebody solve this please?
Can somebody solve this please?
Keshav said:
9 years ago
@Aparna,
20% + 60% + 10% = 90%.
Means rest 10% = 30 rupee.
So obviously his salary will be 300 (100%).
20% + 60% + 10% = 90%.
Means rest 10% = 30 rupee.
So obviously his salary will be 300 (100%).
Bluespark said:
1 decade ago
@ak123
%increase=(increase*100)/year its a formula since u r finding the increase % of 175000, yr=175000
%increase=(increase*100)/year its a formula since u r finding the increase % of 175000, yr=175000
Sneha said:
10 years ago
May be it is:
a-0.25 x = c.
b-0.20 x = c.
a-0.25 x = b-0.20 x.
a-0.45 x = b.
a is 45% greater than b.
a-0.25 x = c.
b-0.20 x = c.
a-0.25 x = b-0.20 x.
a-0.45 x = b.
a is 45% greater than b.
Naren said:
1 decade ago
Ya vijay is correct....
Let his expenses 20+60+10=90
Remaining money 30, means 10%=30, Then 100%=300
Let his expenses 20+60+10=90
Remaining money 30, means 10%=30, Then 100%=300
Sunil vishwakarma said:
1 decade ago
10 is because there is formula of 2 years, p(1+r/100)^t, where t is for next 2 year, is 2*5 = 10.
Vikrala said:
10 years ago
There's a shortcut here i.e 100*r/100+r = 100*20/100+20.
You can easily get the result.
You can easily get the result.
Riad said:
6 years ago
Suppose,
Salary = x.
(100-90)% of x = 30.
10/100 * x = 30.
x = 30*100/10.
x = 300.
Salary = x.
(100-90)% of x = 30.
10/100 * x = 30.
x = 30*100/10.
x = 300.
Rekha said:
7 years ago
But there was not mentioned exactly 10 years. Can you please explain how it came?
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