mrs tan bought 10 kg of rice .if she cooked 400g of rice everyday how many days did the bag lasts?

Answer 1

1 kg = 1,000 g

10 kg = 10,000 g

10,000 / 400 = 25

OR

400 g = 0.4 kg

10 / 0.4 = 100 / 40 = 25

Answer 2

Sorry.

10 / 0.4 = 100 / 4 = 25