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A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/hr more. Find the original speed of the train.

Find the polynomial of least degree which should be subtracted from the polynomial x4 + 2x3 – 4x2 + 6x – 3 so that it is exactly divisible by x2 – x + 1.

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Noun is a word that is used to denote a person, place, thing or whole class of things. For e.g Ram, Cow, Police,Taj Mahal, Physics, Cattle. Nouns are basically classified into 5 sub-types : 1. Proper Noun 2. Common Noun 3. Collective Noun 4. Material Noun 5. Abstract Noun. A name used for an individual person, place, or organization, spelled with an initial capital letter, e.g. Jane, London, and Oxford is termed as Proper Noun. Common nouns are words used to name general items rather than specific ones.Lamp, chair, couch, TV, window, painting, pillow, candle all of these items are named using common nouns. Collective nouns are names for a collection or a number of people or things. Words like group, herd, and array are collective noun examples. This noun is especially called as material noun because nouns in this class are almost materials like cloth, air, metal, gold, salt, iron, silver, steel, brass, bronze, copper, aluminum, lead, coal, coral, gem, diamond, glass, fiber, calcium, plastic, rubber, paper, cement, paint, plywood, synthetics, shampoo, soap, perfume etc. a noun denoting an idea, quality, or state rather than a concrete object, e.g. truth, danger, happiness, is termed as Abstract Noun. If you further need any assistance, you can always message me. read less