exam Maths Puzzle Numerical Ability

a wealthy mathematician left her $6,000,000 estate to her three children. The eldest received 1/3rd of the estate. The youngest received 1/4th of the remainder of the estate. The middle child recived what was left. How much did each child receive?

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A train goes one way to twenty stations and at each station, picks up a group of people, one of which will get off at each of the remaining stations. For example, at station 5, the what do all the angles inside a heptagon add up to ?