Question

The cost of 3 similar books is rupees 90.What will be the cost of 5 such books?



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Answer 1

Cost of 5 books = 90×5/3

= 450/3

= 150/-

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Answer 2

Step-by-step explanation:

$the \: cost \: of \: 3 \: books \: = 90 \\ \\ the \: cost \: of \: 1 \: book = 90 \div 3 = 30 \\ \\ the \: cost \: of \: 5 \: books \: = 5 \times 30 = 150 \: rupees$

the cost of 5 such books = ₹ 150

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