Exercise
1A
ASIC LEVEL
108 identical books have a mass of 30 kg. Find
(i) the mass of 150 such books,
(ii) the number of such books that have a mass
of 20 kg
Answers
Answered by
2
Answer:
i. 41.66kg
ii. 72. books
Step-by-step explanation:
i. The number of books =108
the mass of 108 books is 30kg=30000gm
the mass of each book=30000/108=277.777=278gm
The mass of 150 books = (3000/108)×150=277.7777×150=41666.666666=41666.67gm
the mass of 150 books=41.66kg
ii. the mass of n number of books =20kg=20000gm
the mass of each book =277.77gm
the number of books=20000/277.77=72 books
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