14. The weight of 65 books is 13 kg
(I) What is the weight of 80 such books?
() How many such books weigh 6.4 kg?
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the weight of 65 books is 13 kgs then one book weight equal to 5 books equal to 1 kg then 80 books weight equal to 16 kgs
for 6.4 kgs it can be 31 books
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Answer:
1)16 kg 2) 32 books
Step-by-step explanation:
Books = 65
Weight = 13kg
So weight of one book = 13/65 = 0.2 kg
so weight of 80 books = 80 × 0.2 = 16 kg
No. of books weighing 13 kg = 65 books
so number of books weighing 1kg = 65/13 = 5 books
so number of books weighing 6.4 kg= 5 × 6.4 = 32 books
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