Math, asked by fulbiraj, 8 months ago

the weight of 81 books is 9kg. find the weight of 21 such books.

Answers

Answered by rahulbalaji070

2

Answer:

weight of 81 books = 9kg

weight of 1 book = 9/81

= 1/9 kg

weight of 21 books = 1/9 * 21

= 7/3 kg

= 2.33 kg

Hope it helped

:)

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