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H Harsh Kankaria
Given, Rate of water flow = Depth of river,  Width of the river,  The volume of water flowing in 1 min = Therefore, water falling into the sea in a minute =

H Harsh Kankaria
This is an important question. Given, Side of a solid cube =  We know, the volume of a cube of side  =   The volume of the given cube = Now, the cube is cut into 8 equal cubes of side  (let)  The total volume of these 8 cubes = Volume of the bigger cube   Therefore, the side of the new cube is  Now, we know, The surface area of a cube of side  =   The ratio between their surface...

H Harsh Kankaria
Given, Dimensions of the godown =  Dimension of each wooden crate =  We know , Volume of a cuboid =   Volume of the godown =   Volume of the each crate=  Let number of wooden crates be   Volume of  wooden crates = Volume of the godown
Given, Dimensions of the tank = 4000 people requiring 150 litres of water per head per day The total volume of water required =  Let the number of days the water will last be  We know, The volume of a cuboid =   The volume of the water tank =  According to question, Therefore, the water in the tank will last for 3 days.