Case Study based all questions are compulsory.Each question carries 1 mark.
Q8. In a class of 80 students numbered 1 to 80, all even numbered students opt
for physics, whose numbers are divisible by 5 opt for chemistry and those
who are divisible by 7 opt for mathematics.
Based on the above information answer the following questions [8(1)-8(iv)]:
Q8(i). Number of students who offered mathematics
(A) 11 (B) 10
(C) 40 (D) 21
Q8(i). Number of students who offered all three subjects
(A) 2 (B) (C) 1 (0) 4
Q8(ili). Number of students who offered physics only
(A) 28 (B) 7 (C) (D) 12
Q8(iv). Number of students who offered at least one subject
(A) 50 (B) 52
(C) 80
(D) 53
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Answer:
its correct
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