1. The length of a rectangular field is 1 200 m, the width is 3/5 of the length. 2/3 of the field is seeded with wheat. How many hectares are seeded with wheat?

2. How much dry camomile can you get from 40 kg of fresh camomile when camomile loses 84 % of its weight?

3. The club of nature lovers gathered a collection of 600 insects during the summer. 23 % of the insects was formed by butterflies, 22 % grasshoppers, 16 % dragon – flies and the rest of it beetles. How many beetles did the nature lovers gather?

4. 40 boxes of tomatoes were brought to a greengrocery. There were 25 boxes that contained 10,5 kg tomatoes each and in the rest of the boxes there were 12 2/5 in each. How many kg of tomatoes were brought to the store?