the weight of 72 books is 9 kg. what is the weight of 20 such books?
Answers
Answered by
15
Answer:
heu dear ,
weight of 72 books = 9 kg
weight of 8 books = 1 kg
weight of 20 books = 2. 5 kg
because 2*8+ 8/2 = 2.5
Answered by
2
Answer:
1By Cross Multiplication
72books - 9kg
20books-?
=20×9/72
=5/2
=2.5kg
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