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A lady buys goods worth Rs.200 from a shop whose Shopkeeper selling the goods with zero profit. The lady gives him 1000rs note. The shopkeeper gets the change from the next shop and keeps 200rs for himself and returns 800rs to the lady. After the shopkeeper of the next shop comes with the 1000rs note saying it's a duplicate and takes the money back. How much loss did the shopkeeper face?

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Mani age is 1/6th of her father's age.mani father age wiil twice of vimal's age will be twice of vimal's age after 10 years.if vimal eighth birthday was celebrated two years before,then what is mani present age? consider the sequence 1,-2,3,-4,5,-6.what is the average of the first 200 terms in the sequnce?