At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Connect with a community of experts ready to provide precise solutions to your questions quickly and accurately. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

A local high school has 600 students in grade 9, 400 in grade 10, 300 in grade 11 and 200 in grade 12. A sample of 100n students is used to choose which brand of chocolate bar should be sold in the bending machine. How many of the 100 surveys should handed out to?