The number of bacteria in a culture is `x` now. It becomes square of itself after one week. What will be its number after two weeks?

The population of a certain species of insects is x now. It becomes y times itself after one week. What will be its population after 2 weeks?

The population of a certain species of insects is x now.It becomes y xx itself after one week.What will be its population after 2 weeks?

Rohan spends Rs.x daily and saves Rs.y per week.What is his income after 3 weeks?

Rohan spends Rs. x daily and saves Rs. y per week. What is his income after 3 weeks?

The rate of increase in the numbers of bacteria culture is proportional to the number present.If initially there were 1000 bacteria and the number doubles in 1 hour,find the number of bacteria after a time of 2 1/2 hours.