SOLUTION: In a class of 90 students, there were three choices of subjects to be selected; agricultural, biology and chemistry. 38 0f them chose chemistry, 17 of them chose only agricultural,

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Question 1098815: In a class of 90 students, there were three choices of subjects to be selected; agricultural, biology and chemistry. 38 0f them chose chemistry, 17 of them chose only agricultural, 13 chose only biology and 15 chose only chemistry. If 22 of them chose none of the three subjects.1.find those who chose only agricultural and biology . 2. Agric and chemistry but not biology or biology and chemistry but not agricultural
3. All the three subjects
Answer by richwmiller(17219) About Me  (Show Source):
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1.find those who chose only agricultural and biology zero.
2. Agric and chemistry but not biology 6 or biology and chemistry 6but not agriculture
3. All the three subjects 11