Explanation:
First you should find the wheight of one grain of sand, after that divide 7200 by that wheight and you should come up with how many grains it will take.
Answer:
i dont know if im right but here 60 grams divided by 7,200 and you will get your answer
6 times 10 is 60 and there 7,200 kg so if u divide u will get it.
3.4m questions
4.4m answers