the weight of 8 books is 5kg . the weight of 12 such books is :
a ) 7.5kg b ) 7.6 kg c) 6.5 kg
d ) none of these
please tell answer with step by step explanation
Answers
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Step-by-step explanation:
Weight of 8 books = 5 kg
weight of 1 book = 5/8 kg
weight of 12 books = 5/8 × 12 kg
= 5/2 × 3 kg
= 15/2 kg
• = 7.5 kg
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Answered by
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Answer:
Option (a) is correct
Step-by-step explanation:
Given;
Weight of 8 books= 5 kg.
Weight of 1 book= weight of 8 books/no. of books
= 5/8
Weight of 12 books=weight of 1 book× no. of books
= (5/8)×12
= (5×3)/2
=15/2=7.5 kg
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