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

Posted by Ansh Sharma 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 11 months ago

In cylinder,
r=7cm=0.7m
l=15km
=15000m

In tank,
l=50m
b=44m
h=0.21m

Vol.of water in tank=lbh
=50*44*0.21
=462m³

Height of cylindrical pipe=Vol. / πr²
                                      =462/(0.07)²(22/7)
                                      =462/0.0154
                                      =30000m

Time = 30000/15000
= 2 hours

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CBSE > Class 10 > Mathematics