If 15 artists can make a statue in 48 hors then how many artistd will be required to do the same work in 30 hours?

A factory requires 42 machines to produce a given number of articles in 63 days.How many machines would be required to produce the same number of articles in 54 days?

The rate of increase of bacteria in a culture proportional to the number of bacteria present and it found that the number doubles in 5 hours. Calculate how many times the bacteria my be expected to grow at the end of 15 hours

The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture originally, how many bacteria will be present at the end of 2^("nd") hour, 4^("th") hour and n^("th") hour ?

Shweta takes 6 days less , than the Ankitha to complete the work. The same work is completed together in 4 days. How many days required to complete the work by Ankitha alone?

It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square metres of the sheet are required for the same ?

Parveen wated to make a temporary shelter for her car, by making a box - like structurer with tarpaulin that covers all the four sides and the top of the car (with the front face as a flap which can be rolled up). Assuming that the stiching margins are very small, and therefore neglible, how much tarpaulin would be required to make the shelter of height 2.5 m, with base dimensoins 4mxx3m?

A' takes 6 days less than 'B' to complete a piece of work. If both work together they can complete the same work in 4 days. In how many days will 'B' alone complete the work?

The temperature dropped 15 degree celsius in the last 30 days. If the rate of temperature drop remains the same, how many degrees will the temperature droop in the next ten days?

The sum of the ages of A and B is 85 years. 5 years ago, the age of A was twice that of B. Find the present ages. OR A piece of work can be done by 2 men and 7 boys in 4 days. The same piece of work can be done by 4 men and 4 boys in 3 days. How long it would take to do the same work by one man of one boy?

Lipika reads a book for 1frac{3}{4} hours everyday. She reads the entire book in 6 days. How many hours in all were required by her to read the book?