Question

2. The weight of 72 books is 9 kg.
(i) What is the weight of 80 such books ? (ii) How many such books weigh 6 kg ?
Please help me​

Answer 1

Answer:

Plz refer to the attachment

Hope its helps u

Answer 2

Answer:

As given 72 books weigh 9kg. Then find the average weight of a book. Hence weight of a single book is 0.125kg. = 48 books.