In the garden, four times as many cabbages grew as broccoli and three times as many radishes as cabbages. The total weight of the broccoli was $5 \mathrm{~kg}$. How many pieces of vegetables grew in the garden if each broccoli weighed 250 g? (No other vegetables grew there.) (L. Černíček)
All broccoli weigh $5 \mathrm{~kg}$, one broccoli weighs $250 \mathrm{~g}$, so we first find the number of broccolis: $5 \mathrm{~kg}=5000 \mathrm{~g}, 5000: 250=20$. If there are 20 broccolis, there are four times as many radishes, i.e., $4 \cdot 20=80$ pieces. There are three times as many carrots as radishes, i.e., $3 \cdot 80=240$ pieces. In total, there are $20+80+240=340$ pieces of vegetables.