In a survey, 27% of people chose salads over a meat dish. in all, 81 people chose salads. how many people were in the survey?

Number of people that chose salad = 81
Percentage of people that chose salad over meat dish = 27%
Let us assume the number of people on the survey = x
Then
27% * x = 81
(27/100) * x = 81
27x = 81 * 100
27x = 8100
x = 8100/27
   = 300
So a total of 300 people participated in the survey.I hope the procedure is clear enough for you to understand. Based on this method you can always solve similar types of problems without requiring any kind of help from outside.

The year before the 10s so it was like when caveman were alive

X=y+4 is the answe