Question

the weight of 72 books is 9 kg what is the weight of 80 such booksand how many such boksweight 6kg.b.15 pens costrs2.25what will be the cost of 36 pens.how many pens can we buy in rs45

Answer 1

9/72*80
=10
72/9*6
=48

2) 2.25/15*36
=5.4
15/2.25*45
=300

Answer 2

Hi friend!!!

Here is your answer>>>

9/72*80=10
72/9*6=48

2.25/15*36=36
15/2.25*45=300

I hope its the right answer!!!

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