Baking bread
When grinding 100 kg of grain, we obtain 75 kg of flour for food purposes, about 23 kg of bran, which has further use, and about 2 kg is waste. 4.5 kg of bread is baked from 4 kg of flour.
a) How many kilograms of bread can be baked from 100 kg of grain?
b) How many kilograms of grain is needed per 100 kg of bread?
a) How many kilograms of bread can be baked from 100 kg of grain?
b) How many kilograms of grain is needed per 100 kg of bread?
Correct answer:

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