Question

100 students are interviewed to see which of biology, chemistry or physics they prefer.

30 of the students are girls. 16 of the girls like biology best.
9 of the boys prefer physics.
2 out of the 34 who prefer chemistry are girls.
What percentage of the students prefer biology?


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Answer 1

16%

Explanation:

16 girls like biology so 16/100=0.16 in order to get percentage multiply by 100 so 16%. Think you are missing some parts tho