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Subject matter experts at an edutech organization are asked their specialties. Among them 40% choose maths, 16% choose physics, 34% choose chemistry and remaining x% choose biology. Once the experts pick their first speciality, they are then each asked to choose a second speciality from the previous four options in case their original speciality is already filled. they may not pick their original speciality again. 20% of those who choose maths choose physics as their second choice, and the organization boasts 200 subject matter experts , then what is the total number of residents who named physics as their first or second choice in terms of x? (A)8x−128(B)8x−144(C)x2+24x−188(D)x2−24x+188

Subject matter experts at an edutech organization are asked their specialties. Among them 40% choose maths, 16% choose physics, 34% choose chemistry and remaining x% choose biology. Once the experts pick their first speciality, they are then each asked to choose a second speciality from the previous four options in case their original speciality is already filled. they may not pick their original speciality again. 20% of those who choose maths choose physics as their second choice, and the organization boasts 200 subject matter experts , then what is the total number of residents who named physics as their first or second choice in terms of x?
(A)8x−128(B)8x−144(C)x2+24x−188(D)x2−24x+188

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
2 years ago
Our expert is working on this Class VIII Maths answer. We will update the answer very soon.

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