English

The population of a place increased to 54,000 in 2003 at a rate of 5% per annum. what would be its population in 2005? - Mathematics

Advertisements
Advertisements

Question

The population of a place increased to 54,000 in 2003 at a rate of 5% per annum. what would be its population in 2005?

Sum

Solution

Population in 2005 = 54000 `(1 + 5/100)`

= `54000 (1 + 1/20)^2`

= `54000 xx 21/20 xx  21/20`

= 59535

Thus, the population in 2005 would be 59,535.

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: Comparing Quantities - Exercise 8.3 [Page 134]

APPEARS IN

NCERT Mathematics [English] Class 8
Chapter 8 Comparing Quantities
Exercise 8.3 | Q 10.2 | Page 134

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Compute the amount and the compound interest in  the following by using the formulae when:
Principal = Rs 3000, Rate = 18%, Time = 2 years


At what rate percent will a sum of Rs 1000 amount to Rs 1102.50 in 2 years at compound interest?


In a factory the production of scooters rose to 46305 from 40000 in 3 years. Find the annual rate of growth of the production of scooters.


The count of bacteria in a culture grows by 10% in the first hour, decreases by 8% in the second hour and again increases by 12% in the third hour. If the count of bacteria in the sample is 13125000, what will be the count of bacteria after 3 hours?


The population of a city increases each year by 4% of what it had been at the beginning of each year. If the population in 1999 had been 6760000, find the population of the city in (i) 2001 (ii) 1997.


The population of a city increases each year by 4% of what it had been at the beginning of each year. If the population in 1999 had been 6760000, find the population of the city in (i) 2001 (ii) 1997

The population of a city increases each year by 4% of what it had been at the beginning of each year. If the population in 1999 had been 6760000, find the population of the city in (i) 2001 (ii) 1997.

 

.


Sameerrao has taken a loan of ₹ 12500 at a rate of 12 p.c.p.a. for 3 years. If the interest is compounded annually, then how many rupees should he pay to clear his loan?


The population of a suburb is 16000. Find the rate of increase in the population if the population after two years is 17640.


The population of a city was 20,000 in the year 1997. It increased at the rate of 5% p.a. Find the population at the end of the year 2000.


The value of a car, bought for Rs 4,40,000 depreciates each year by 10% of its value at the beginning of that year. So its value becomes Rs 3,08,000 after three years.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×