UNITARY METHOD -----
A) The weight of 45 books is 9 kg.
(i) What is the weight of 80 books?
(ii) How many books will weight 10.8 kg?
Answers
Answered by
2
Answer:
1 - The weight of 80 books is
16 kg
2 - The answer is 54
Answered by
1
Answer:
(i) 16 kg
(ii) 54 books
Step-by-step explanation:
45 books — 9 kg
1 book. — (?)
9 kg / 45 = 1/5 kg
weight of 80 books - 1/5 × 80 = 16 kg
45 books — 9 kg
(?). — 10.8 kg
45×10.8/9=54 books
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