3. The machinery of a machinery of ...
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3. The machinery of a machinery of a certain factory is valued at Jours ago. * 18.400 at the end of 1980. If it is supposed to depreciate each year at 8% of the value at the beginning of the year, calculate the value of the machine at the end of 1979 and 1981. (ICSE) The nresent value of a scootonin

11th - 12th Class
Maths
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factory value ( =18400 ) at end of every year ( =8 % ) In 1979 year ( =x ) (factory value) [ begin{array}{l} x times frac{100-8}{100}=18400 x times frac{92}{100}=18400 x=18400 times frac{100}{921}=20000 end{array} ] In 198 l year ( =y ) lfactory value [ begin{array}{c} y=18400 * frac{100+8}{100} y=18400 times frac{92}{100} y=16928 end{array} ]
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