Question

Пчёлы перерабатывая цветочный нектар в мёд, освобождают нектар от значительной части воды. сколько нектара приходится перерабатывать пчёлам для получения1 кг мёда, если известно, что нектар содержит 70% воды, а полученный из него мёд - 17% воды?

Answer 1

В 1 кг нектара 300 г "сухого" вещества, а в 1 кг меда - 840 г.
Следовательно надо переработать 840/300 = 2.8 кг нектара, чтобы получить 1 кг меда

Answer 2

Calculating the Amount of Nectar Processed by Bees to Make 1 kg of Honey

To calculate the amount of nectar that bees need to process to produce 1 kg of honey, we can use the following information: - Nectar contains 70% water. - The honey produced from the nectar contains 17% water.

First, let's calculate the amount of water in the honey: - 17% of 1 kg of honey is water.

Step 1: Calculate the Amount of Water in 1 kg of Honey - 17% of 1 kg = 0.17 kg

This means that 0.17 kg of the 1 kg of honey is water.

Next, we can calculate the amount of water in the nectar needed to produce this amount of water in the honey.

Step 2: Calculate the Amount of Nectar Needed - Since nectar contains 70% water, we can use the following formula to find the amount of nectar needed: (Amount of water in honey) / (Percentage of water in nectar) = Amount of nectar needed

Step 3: Perform the Calculation - (0.17 kg) / (0.70) = 0.242857 kg

Therefore, the bees need to process approximately 0.242857 kg (or 242.857 grams) of nectar to produce 1 kg of honey.

Conclusion

Bees need to process approximately 242.857 grams of nectar to produce 1 kg of honey, given that nectar contains 70% water and the honey produced from it contains 17% water.