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प्रश्न
6 books weigh 1 .260 kg. How many books will weigh 3.150 kg ?
उत्तर
1 kg 260 g or 1.260 kg no.of.books = 6
and in 1 kg. no. of books = `6/1.260`
and in 3.150 kg no.of.books = `(6 xx 3.150)/1.260`
`= (6 xx 3150)/1260 = 3150/210` = 15 books
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