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Speed of the shorter train = 130/10 = 13 m/sec Let the speed of the longer train be x km/hr According to the question, ⇒ (13 + x) = (130 + 250)/10 ⇒ 13 + x = 380/10 ⇒ x = 38 – 13 = 25 ⇒ x = 25 x 18/5 = 90 km/hr
A wire is bent to form a square whose sides are of 132 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circ...
A field is 125m long and 15m wide. A tank 10m ×7.5m×6m was dug in it and the earth thus dug out was spread equally on the remaining field. The level o...
A rectangular lawn is 60 meters X 50 meters and has two roads, each 2 meters wide, in the middle of it, one parallel to its length and the other paralle...
Perimeter of a square field is 160 meters and the area of a rectangular field is 40% more than that of the square field. Find the area (in m2...
What is the difference between (in m2) the area of a circular field of radius 14 metres and area of a rectangular piece of land having its di...
When the breadth of a rectangle is reduced by 4cm (keeping the length constant), its area reduces by 72 cm2 and when the length is reduced by...
A rectangular reservoir of 2800 m3 capacity has length and height equal to 10 m and 40 m respectively. if 420 m3 of water i...
The volume of water measured on a rectangular field 400m 200m is 8000 . Find the depth (amount) of rain that has fallen.
Perimeter of a square and circumference of a circle are in the ratio 15:11, respectively. If area of the square is 225 cm2, then find the rad...
