100 students are interviewed to see which of biology, chemistry or physics they prefer. 57 of the students are girls. 34 of the girls like biology best. 27 of the boys prefer physics. 20 out of the 28

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

57 of the students are girls. 34 of the girls like biology best.
27 of the boys prefer physics.
20 out of the 28 who prefer chemistry are girls.
What percentage of the students prefer biology?

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100 students are interviewed to see which of biology, chemistry or physics they prefer. 57 of the students are girls. 34 of the girls like biology best. 27 of the boys prefer ph…

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