In a bank, principal increases continuosly at the rate of `r%` per year. Find
the valueof r if Rs. 100 double itself in 10 years. `(log_e 2 = 0.6931)`

In a bank, principal increases continuously at the rate 5 % per year. In how many years Rs 1000 double itself?

In a bank, principal increases continuosly at the rate of 5% per year. An amount of Rs. 1000 is deposited with this bank. How much will it worth after 10 years (e^(0.5) = 1.648)

The population of a country doubles in 50 years. How many years will it be five times as much? Assume that the rate of increase is proportional to the number inhabitants. (hint: log2=0.6931, log5=1.6094)

The income of a person is Rs. 300000 in the first year and he receives an increase of Rs. 10000 to his income per year for the next 19 yéars. find the total amount, he received in 20 years.

A man deposited Rs. 10000 in a bank at the rate of 5% simple interest annually. Find the amount in 15^(th) year since he deposited the amount and also calculate the total amount after 20 years.

A man deposited Rs. 10000 in a bank at the rate of 5 % simple interest annually. Find the amount in. 15^ th year since he deposited the amount and also calculate the total amount after 20 years.

The temperature dependence of the rate of a chemical reaction can be explained by Arrhenius equation.The rate of a chemical reaction doubles for an increase of 10 K in absolute temperature from 300 K. Calculate the activation energy(Ea)? [ R=8.314 JK^(-1)mol^(-1),log 2 = 0.3010 ].