Explanation

The woman used one-fifth of 50 kg of wheat, which is: 50 kg × (1/5) = 10 kg

So, she used 10 kg of wheat to make bread.

She cooks two meals a day, which means she uses 20 kg of wheat per day.

To find out how much wheat she will use in two days, multiply the daily usage by 2:

20 kg/day × 2 days = 40 kg

Therefore, the correct answer is: 40 kg.