The count of bacteria in a culture grows by 10% in the first hour, decreases by 8% in the second hour and again increases by 12% in the third hour. If the count of bacteria in the sample is 13125000, what will be the count of bacteria after 3 hours?

The bacteria in a culture grows by 10% in the first hour, decreases by 10% in the second hour and again increases by 10% in the third hour. If the original count of the bacteria in a sample is 10000, find the bacteria count at the end of 3 hours.

A cyclist travels a distance of 1 km in the first hour, 0.5 km in the second hour and 0.3 km in the third hour. Find the average speed of the cyclist in km h^(-1) .

A cyclist travels a distance of 1 km in the first hour, 0.5 km in the second hour and 0.3 km in the third hour. Find the average speed of the cyclist in ms^(-1) .

A population of bacteria doubles every 2 hours . What is the percent increase after 4 hours ?

A population of bacteria doubles every 2 hours. What is the percent increase after 4 hours ?

The population of a bacteria culture doubles in number every 12 minutes. The ratio of the number of bacteria at the end of 1 hour to the number of bacteria at the beginning of that hour is

In a first order reaction, the concentration of the reactants is reduced to 25% in one hour. The half-life periof of the reactions is

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.

In a first-order reaction, the concentration of the reactant is reduced to 12.5% in one hour. Calculate its half-life.

Amol bought a plot of land for 70,000 and a car for 32,000 on the same day. The value of the plot appreciates uniformly at the rate of 10% every year while the value of the car depreciates by 20% for the first year and by 10% for the second year. If Amol sells the plot of land as well as the car after 2 years, what will be the profit or loss on the whole ?