Imagine9508 Imagine9508

22-02-2021
Mathematics

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If the weight of 90 books is 50kg, what is the weight of 180 such books. In both proportion and unitary method.

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topeadeniran2 topeadeniran2

23-02-2021

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that the weight of 90 books is 50kg. We need to get the weight of a book first and this will be:

= 50/90

= 5/9

Therefore, the weight of 180 such books will be 5/9 multiplied by 180. This will be:

= 5/9 × 180

= 100kg

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