Aunt Gemma has four dogs. She feeds them with dog food twice a day. Each dog can consume 250 grams of food per meal. If aunt Gemma bought 2 sacks of dog food, each weighing 50 kilograms, how many days will those food last?
Each dog consumes 250 grams x 2 = 
<gadget id="calculator">250*2</gadget>
<output>500</output>
500 grams of dog food each day.
So, 4 dogs consume 500 grams x 4 = 
<gadget id="calculator">500*4</gadget>
<output>2_000</output>
2000 grams of dog food each day.
Since there are 1000 grams in 1 kilogram, then the 4 dogs can consume 2000/1000 = 
<gadget id="calculator">2000/1000</gadget>
<output>2</output>
2 kilograms of dog food each day.
Aunt Gemma bought a total of 50 kilograms x 2 = 
<gadget id="calculator">50*2</gadget>
<output>100</output>
100 kilograms of dog food.
Hence, it will last 100 kilograms/2 kilograms = 
<gadget id="calculator">100/2</gadget>
<output>50</output>
50 days.

<result>50</result>