the length breadth and depth of a tank are 120 m 60 m and 4 m.find the time for filling up the tank by the water flowing through a rectangular sluice of length 40 cm and 20 cm at the rate of 3 km/hr
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SPEED = 3 km /h = 3 x 1000/60 m / min. = 50 m / min.
Distance = ( 120 x 60 x 4 )/( 40/100 x 20/100 )
= 360000 m
Time = 360000 / 50 min = 7200 min
= 120 hr.
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