1QUESTION 1 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
20,000
grains
How to estimate it
Fermi’s official “Napkin math”
Picture a level teaspoon of dry rice, a common kitchen measure. Maybe 150 grains fit on it. A teaspoon is about 5 milliliters, so a 500 milliliter bottle holds about 100 teaspoons.
- Rice on one teaspoon (5 ml)
- ≈ 150 grains
- Teaspoons in 500 ml
- ≈ 100
- 150 × 100
- ≈ 15,000
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- USDA: 1 cup (240 ml) uncooked white rice
- ≈ 185 g
- Average grain weight
- ≈ 0.02 g
- 185 ÷ 0.02
- ≈ 9,250 grains per cup
- Scaled to a 500 ml bottle
- ≈ 20,000 grains
Reference cited by Fermi: USDA FoodData Central (uncooked white rice, cup measure)
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