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Let the speed of train be s m/sec and length be l. A train crosses a pole in 12 sec. Distance = speed time l = 12s ---(1) A train crosses a bridge of length 170 m in 36 sec. Total length = l + 170 l + 170 = 36s ----(2) Put the value l in eq (2), 12s + 170 = 36s s = 170/24 = 7.08 m/sec = 7.08 $$\times \frac{18}{5} = 25.5 m/sec Speed of the train is 25.5 m/sec.
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The ratio of length to breadth to height of a cuboidal box is 6:5:4. If the total surface area of the cuboid is 1,392 cm², then ...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 1458 cm³ . Find the perimeter of the rectangle if its length is 12...
The diameter-to-height ratio of a right circular cone is 16:15. Given that the curved surface area is 1224 π cm2, determine the cone's slant...
A cube has edge 13 m. Find its length of diagonal, surface area and volume.
Water flows at the rate of 10 meter per minute from a cylindrical pipe 5mm in diameter. How long it takes to fill up a conical vessel whose diameter at ...
When the area of a square carpet is 676 m2 then what will be the perimeter of the rectangle whose length is 4 more than the side of the squar...
