Question

In a survey it was found that 120 study Mathematics, 90 study Physics and 70 study Chemistry, 40 study Mathematics and Physics, 30 study Physics and Chemistry, 50 study Chemistry and Mathematics and 15 study all three subjects. Find the number of students who study exactly one subject.​
explain

Answer 1

Answer:

SIMPLE JUST ADD THE STUDENTS OF MATHS PHYSICS CHEMISTRY THE TOTAL WILL BE

$120 + 90 + 70 = 280$

THEREFORE 280 STUDENTS STUDY ONLY 1 SUBJECT

Answer 2

Answer:

180

Step-by-step explanation:

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