The weight of 72 books is 9 kg.
(a) Find the weight of 80 such books.
(b) How many books will weigh 6 kg?
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2
Answer:
10kg ...........
Step-by-step explanation:
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Step-by-step explanation:
a)Weight of 72 books = 9 kg
total books at weight of 1 kg = 72÷9 = 8
8 books are at 1 kg then,
weight of 80 books = books in 1 kg is 8 books
weight of 80 books = 80÷8 = 10 kg
hence , weight of 80 books is 10 kg
b)total books at weight 1 kg = 8 books
total books at weight 6 kg = 8 × 6 = 48 books
hence , 48 books are at weight of 6 kg .
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