The Zoological Survey of India (ZSI), with its headquarters in ___, and having presence in 16 regional stations, is responsible for surveying the faunal resources of India.
Five years ago, Roshan was three times as old as Preethi. If the difference between their ages is 6 years, the present age (in years) of Preethi is ______.
Study the given line graph and answer the following question.
The given line graph depicts the number of pens and pencils sold by three shops (A, B and C).
What is the difference between the total number of pens sold by shops A and B and the number of pencils sold by shop C?
D. change in the density of different layers of air causes change in refractive index continuously
30.
One pipe can fill a tank three times as fast as another one. Both the pipes opened together can fill the tank completely in 36 minutes. In how many hours will the faster pipe alone fill the empty tank completely?
