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1. The weight of \(72\) books is \(9 \ kg\). What is the weight of \(40\) such books? (using unitary method)
Weight of \(40\) books \(=\) \(kg\)
2. Thamarai pays \(₹7500\) as rent for \(3\) months. With the same rate how much does she have to pay for \(1\) year? (using unitary method).
Rent for \(1\) year \(=\) \(₹\)
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