Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Water is flowing at the rate of 15 km/h through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide. In what time will the level of water in pond rise by 21 cm?

Water is flowing at the rate of 15 km/h through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide. In what time will the level of water in pond rise by 21 cm?

Answers (1)

Answer 2 hours

Solution

            Length of cuboidal pond = 50m

            Breadth = 44 m

           Height=21 cm =\frac{21}{100}m

         Volume=l \times b \times h

                        =50 \times 44 \times \frac{21}{100}

            Speed of water = 15 km per hour = 15000 m

      \text{ The diameter of the cylindrical pipe }=14 cm =\frac{14}{100}m

  Radius =\frac{7}{100}m

  Volume=\pi r^2 h           

   =\frac{22}{7}\times \frac{7}{100}\times \frac{7}{100}\times 15000 = 213m^3

      \text{ Time required}=\frac{\text{volume of cuboid pond}}{\text{volume of cylindrical pipe}}

                        =\frac{462}{231}=2hours

Posted by

infoexpert21

View full answer

Similar Questions

Latest Question