10. The weight of a book is 0.31 kg. A bag is 5 times heavier than the book and a chair is 3.6 times heavier than the bag. What is the weight of the chair?
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Answer:
weight of book=0.31kg
weight of bag= 5×0.31kg=1.55kg
weight of chair=3.6 ×1.55=5.58 kg
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