What will be the cost of 18 bananas, if the cost of one dozen bananas is ₹ 21?

₹ 21

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₹ 52

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₹ 54

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₹ 60

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Solution

The correct option is C ₹ 54
Cost of one dozen bananas = ₹ 36
Cost of 12 bananas = ₹ 36
Cost of 1 banana = ₹ 36 $\div$ 12
= ₹ 3
Cost of 18 bananas = ₹ 3 $\times$ 18
= ₹ 54

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