Question

If the students count a total of 60 living organisms in the sandbox,how many will be living insects? How many will be weeds

Answer 1

Insects represent about 80 percent of the world's species, so there will be $60×0.8 = 48$ living insects in the box. We don't know the exact percentage of the weeds, so we can't calculate the number of living weeds in the box without additional information.