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Question

# Ruby wants to prepare lemonade for her birthday party. She needs to make 25 glasses of lemonade. For making a glass of lemonade, 110 g of sugar and 200 mL of water are needed. Estimate the amount of sugar and water needed to prepare 25 glasses of lemonade (round off to the nearest 1000).

A
3 kg of sugar, 5 L of water
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B
4 kg of sugar, 5 L of water
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C
2 kg of sugar, 4 L of water
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D
5 kg of sugar, 5 L of water
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Solution

## The correct option is A 3 kg of sugar, 5 L of waterTo prepare a glass of lemonade, 110 g of sugar is needed. To prepare 25 glasses, 25 × 110 = 2750 g sugar is needed. Rounded off to the nearest thousands, 2750 → 3000 1000 g = 1 kg 3000 g = 3 kg To prepare a glass of lemonade, 200 mL water is needed. To prepare 25 glasses, 25 × 200 = 5000 1000 mL = 1 L Hence, 3 kg of sugar with 5 L of water are needed.

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