Question

Nine out of ten students prefer math class over lunch . How many students do you not prefer math if 200 students were asked

Answer 1

20

Explanation:

"Nine out of ten students prefer math class over lunch. How many students would not prefer math class if 200 students were asked about their preferences, if they followed the same percentage?"

Nine out of ten

Change total (ten) to 200

Ratio: 9/10 = x/200

180/200 = x/200

x = 180 prefer math

200 - 180 = 20 do not prefer math