The population of a place increased to 54,000 in 2003 at a rate of 5% per annum.(i)Find the population in 2001. (ii)What would be its population in 2005?

The population of a city decreased from 25,000 to 24,500. Find the percentage decrease.

In a bank, principle p increases continuously at the rate of 5% per year. Find the principal in terms of time t.

A population grows at the rate of 5% per year. How long does it take for the population to double.

If a population of 50 Paramoecium present in a pool increases to 150 after an hour, what would be the growth rate of population?

A population grows at the rate of 10% of the population per year. How logn does it take for the population to double?

A crane had DDT level as 55m is its body . What would be happen to the population of such birds ?

A scooter was bought at ₹ 42,000.Its value depreciated at the rate of 8% per annum.Find its value after one year.

In a laboratory,the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour.Find the bacteria at the end of 2 hours if the count was initially 5,06,000.

Vasudevan invested ₹60,000 at an interest rate of 12% per annum compounded half yearly.What amount would he get:(i) after 6 months? (ii)after 1 year?