Advertisements
Advertisements
प्रश्न
The population of a city is 1,25,000. If the annual birth rate and death rate are 5.5% and 3.5% respectively. Calculate the population of the city after 3 years.
Advertisements
उत्तर
Here net growth = (5.5 - 3.5)% = 2%
P = ₹ 1,25,000
n = 3 years
∴ Population of the city after 3 years
= 1,25,000 `(1 + 2/100)^3`
= 1,25,000 `((102)/(100))^3`
= 1,25,000 x `(102 xx 102 xx 102)/(100 xx 100 xx 100)`
= 1,32,651.
संबंधित प्रश्न
Mr.Mohan invested Rs. 12500 at 16 % p.a. compounded annually. If the duration of the deposite was 1.5 years , find the amount Mr.Mohan received at the end of 1.5 years.
Manoj borrowed Rs 25,000 from Sohan at 8.4 % p.a. compound interest. After 2 years Manoj cleared Rs 17,500 and a motorcycle. Find the cost of the motorcycle.
The value of a 'Honda' bike depreciated by 16% in the first year and by 13% in the second year. Find the value of the bike if it depreciated by Rs 7,098 in the second year.
The cost of a scooter depreciated by Rs 5100 during the second year and by Rs 4,335 during the third year. Calculate
Ramesh borrowed Rs 12,000 at 15% compound interest for 2 years. At the end of the first year he returned some amount and on paying Rs 9,200 at the end of the second year, he cleared the loan. Calculate the amount of money Ramesh returned at the end of the first year.
Find the principal which will amount to Rs 22,344 in 2 years at compound interest if the rates of interest for the successive years are 12% and 14%?
What sum of money will amount to Rs 18, 792 in `1 1/2` years at 16% p.a. compounded yearly?
What sum of money will amount to Rs 15,746.40 at 16% p.a. compounded half-yearly?
Calculate the rate per cent at which Rs 12,250 will yield Rs 3,116.40 as compound interest in 2 years.
The compound interest on a certain sum of money at 10% p.a. for 3 years is Rs 4,965. What will be the simple interest on the same sum for 3 years at 11% p.a.?
