Due to covid 19,marie wanyed to earn for a living.so she bought a book whuch is 4.5cm think each and placed in s sheilf 2.5meters long.how many books were there? If each book cost 315.25.how much were the cost if all the books were solid?
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it's 400₹ because if the sheilf is 2.5meters so it 20 books can settle
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