The cost of 5 books is Rs.20. Find the cost of 10 books.
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Answer:
Rs 40
Step-by-step explanation:
The cost of 5 books = Rs 20
The cost of 1 book = Rs 20÷5
The cost of 10 books = Rs 20÷5 ×10
= Rs 4 ×10
= Rs 40
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