Respuesta :

Mary will bake 15 trays.

Firstly converting the amount of flour into grams that Mary has.

As per the known facts 1 kilogram = 1000 grams.

So, amount of flour in grams  = 3 × 1000

Performing multiplication to calculate amount of flour

Amount of flour in grams = 3000 grams.

Now, 200 grams flour is required by number of trays = 1

So, 3000 grams flour will be required by number of trays = (1÷200)×3000

Performing multiplication and division to find the number of trays that can be baked

Number of trays = 15

Hence, Mary can bake 15 trays of muffins with 3 kilograms of flour.

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