A pile of 104 copies of the book weighs 78 kg. Find:
a) How many books weigh 30 kg?
b) The weight of 136 books.
Answers
Answered by
3
a): 22.5 books weigh 30kg
b): 136 books 102kg
This is my answer I hope it is correct and help you
b): 136 books 102kg
This is my answer I hope it is correct and help you
Answered by
5
30*104=78*x
30*104/78=x
3120/78=x
40=x
weight of 30kg copies is 40kg
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