1-Find-the-principal-if-its-interest-in-3month-with-5-1-2-per-amount-is-Rs-66-2-The-length-of-arectangular-room-is-double-of-its-breadth-and-height-is-one-third-of-the-length-If-the-room-cont

Question Number 99829 by Mr.D.N. last updated on 23/Jun/20

$$\:\mathrm{1}.\mathrm{Find}\:\mathrm{the}\:\mathrm{principal}\:\mathrm{if}\:\mathrm{its}\:\mathrm{interest}\:\mathrm{in}\:\mathrm{3month}\:\mathrm{with}\:\mathrm{5}\frac{\mathrm{1}}{\mathrm{2}}\%\:\mathrm{per}\:\mathrm{amount}\:\mathrm{is}\:\mathrm{Rs}.\mathrm{66}. \\ $$$$\:\mathrm{2}.\:\mathrm{The}\:\mathrm{length}\:\mathrm{of}\:\mathrm{arectangular}\:\mathrm{room}\:\mathrm{is}\:\mathrm{double}\:\mathrm{of}\:\mathrm{its}\:\mathrm{breadth}\:\mathrm{and} \\ $$$$\:\:\mathrm{height}\:\mathrm{is}\:\mathrm{one}\:\mathrm{third}\:\mathrm{of}\:\mathrm{the}\:\mathrm{length}.\:\mathrm{If}\:\mathrm{the}\:\mathrm{room}\:\mathrm{contains}\:\mathrm{972}\:\mathrm{cubic}\:\mathrm{meter}\:\mathrm{of}\:\mathrm{air}, \\ $$$$\:\mathrm{find}\:\mathrm{the}\:\mathrm{area}\:\mathrm{of}\:\mathrm{floor}\:\mathrm{of}\:\mathrm{the}\:\mathrm{room}. \\ $$

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