Ex.3. The marked price of a TV is R...
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Ex.3. The marked price of a TV is Rs. 16,000. After two successive discounts it is sold for Rs. 11,400, If the first discount is 5%, then the rate of sec- ond discount is (1) 15% (2) 20% (3) 30% (4) 25%

11th - 12th Class
Maths
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sol. (4) After a discount of ( 5 % ) ( S P=frac{95 times 16000}{100}= ) Rs. 15200 Let the second discount be ( x % ). ( therefore x % ) of ( 15200=(15200-11400) ) ( Rightarrow frac{x times 15200}{100}=3800 ) ( Rightarrow x=frac{3800 times 100}{15200}=25 ) ( therefore ) Second discount ( =25 % )
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