A town has population of 50,000 in 1988.In one year i.e. by 1989 it increased by 25%.Next year i.e. in 1990, it decreased by 30%.The next year in 1991 there was an increase of 40%.What is the population at end of 1991?60250622506655061250
Question
A town has population of 50,000 in 1988.In one year i.e. by 1989 it increased by 25%.Next year i.e. in 1990, it decreased by 30%.The next year in 1991 there was an increase of 40%.What is the population at end of 1991?60250622506655061250
Solution
Let's calculate the population year by year:
-
In 1988, the population was 50,000.
-
In 1989, the population increased by 25%. To calculate this, we multiply the 1988 population by 25% (or 0.25) and add the result to the 1988 population: 50,000 * 0.25 = 12,500 50,000 + 12,500 = 62,500
-
In 1990, the population decreased by 30%. To calculate this, we multiply the 1989 population by 30% (or 0.30) and subtract the result from the 1989 population: 62,500 * 0.30 = 18,750 62,500 - 18,750 = 43,750
-
In 1991, the population increased by 40%. To calculate this, we multiply the 1990 population by 40% (or 0.40) and add the result to the 1990 population: 43,750 * 0.40 = 17,500 43,750 + 17,500 = 61,250
So, the population at the end of 1991 was 61,250.
Similar Questions
Population of a town increases by 15% per year. If the population of that town is 10, 36, 725 this year, what was the population in the previous year?9, 01, 5009, 01, 53010, 36, 71010, 20, 500
The population of a town increases by 10% every year. If the population at the end of three years is 2,66,200. Then the population at the start of the first year is?Question 1Answera.230000b.220000c.200000d.240000
A city's population is increasing at a rate of 2% per year.If this rate of growth remains the same and the population is 2 million in the year 2014, approximately how many people will there be after 20 years?
The population of a town in 20072007 is 113,505113,505 and is increasing at a rate of 1.2%1.2% per year. What will the population be in 20122012?y=𝑦= (( )x)𝑥What number will you fill in for x𝑥 to solve the equation? (Hint: For this one, how many years after 20072007 is 20122012?y=𝑦=
The population of a town is 32000. It increase by 15% during the first year. During the second year it decreases by 20% and increased by 2% during the third year. What is the population after 3 years?a.30028b.31280c.36800d.38600
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.