Basics of Finan...

A species has an initial population ${ 4 }^{ 10 }.$ At the end of second day, it decreases by the same percentage. If the process continues in the same pattern, the number of days for the population to reach ${ 3 }^{ 10 }.$ is

The value of a machine depreciate 5% annually.  If is present  value is Rs 200000, its value after 2 years will be 

Abhinav purchased a tracksuit for $2400$ cash or for $2000$ cash down payments and two monthly installments of $800$ each. The rate of interest is

At what rate % per annul a sum of RS. 1800 will become RS. 2,700 in 10 years ?

A sum of money doubles itself in 10 years at SI. Then the rate of interest is ______.

A sum of money at SI amounts to RS.2240 in 2 years and to RS.2600 in 5 years. What is the principle amount ?

A car is valued at Rs. 500000 If sits value depreciates at 2 % p.a.  What will be its value after three years? 

The present population of a city is $12,00,000$ . If it increases at the rate of $8$% every year, then the population of the city after $2$ years is

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

Anitha borrowed Rs.400 from her friend at the rate of 12% p.a for 2 and half year. Find the interest and amount paid by her?