Question

A serving of green beans is 125 g. The cafeteria has 10 5-kilogram cans of green beans. Does the cafeteria have enough green beans to serve 350 students?

Answer 1

1 gram = 0.001 kilograms 

1/0.001=x/50
0.001x=50
x=50,000 grams

125x350=43,750

The cafeteria has 50,000 grams of green beans, and they need 43,750 grams to serve all of the students. Therefore the cafeteria does have enough green beans.

Answer 2

Single serving=125g
for 350 students=125*350g=43750g
or 43.75 kg

as cafeteria has 10 5kg cans thats is 10*5=50 kg so enough beans