Question

Weight of 15 identical books is 6 kg. what is the weight of 45 such book​

Answer 1

Answer:

If weight of 15 identical book is 6 kg then 45 such book costs 18 kg ....

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Answer 2

Step-by-step explanation:

$weight \: of \: 15 \: books= 6 \: kg \\ weight \: of \: 45 \: books = \frac{45}{15} \times 6 \\ {.}^{.} .weight \: of \: 45 \: books = 3 \times 6 \\ | {.}^{.} .weight \: of \: 45 \: books = 18 \: kg |$