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Start learning 50% faster. Sign in nowRequired time = Sum of the lengths of trains / Relative speed Relative speed = 50 + 40 = 90 kmph = (90 × 5)/18 = 25 m/sec Required time = (200 + 100)/25 = 300/25 = 12 seconds
If base of a prism is square of side 12 cm & height is 22 cm . What is the volume of prism?
Steel is used to make a hemispherical bowl that is 0.37 cm thick. The bow's inner radius is 6 cm. Find the bowl's outside curved surface.
If each interior angle of a regular polygon is 135 degrees, then number of side of this polygon is
Area of a rhombus whose one of the diagonals (d1) is 28 cm, is 560 cm2. Each side of a square paper is 20 cm more than other diagonal (d2) of...
The cost of fencing a rectangular field at the rate of Rs. 7/metre is Rs. 350. If the length of the field is 11 metres more than its breadth, then find ...
Find the time taken by a pipe, which releases 134.4 m3 of water in a minute to fill an empty cylindrical tank of radius 16 m and height 14 m....
When the side of a square is increased by 50%, then what will be the % change in the area of the square?
On a rectangular wall of length 22 metres and height 19 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
