Break the problem into measurable components: estimate the weight of a single grain of rice, then divide 10kg by that weight. State your assumptions clearly and show the calculation, while acknowledging the inherent uncertainty in the estimate.
Pro tip: After arriving at a number, briefly discuss how you would validate it (e.g., weighing a small sample) and how the estimate could inform product decisions, showing you think beyond the math.
Ask clarifying questions to ensure you understand what is being asked, such as whether the bag contains long-grain or short-grain rice, and whether it's a standard 10kg bag with no other contents.
Use known references: a typical grain of rice weighs about 0.02 to 0.03 grams. You can also estimate by recalling that a cup of rice (about 200g) contains roughly 7,000-8,000 grains.
Divide 10,000 grams by the estimated weight per grain. For example, at 0.025g per grain, 10,000 / 0.025 = 400,000 grains.
Consider if the result seems reasonable: a 10kg bag is large, so hundreds of thousands of grains makes sense. If needed, adjust for variables like grain size or moisture content.
Clearly state your assumptions (e.g., average grain weight) and acknowledge that the answer is an estimate with a range (e.g., 300,000 to 500,000 grains).
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.