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Bunuel
Of 450 employees at a company, 20% are managers and the rest are not managers. If 60% of the managers work in the engineering department, how many managers do not work in the engineering department?

(A) 36
(B) 54
(C) 90
(D) 180
(E) 216


Solution:


Let’s make a tree and solve this problem.

Hence, the correct answer is Option A.
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Bunuel
Of 450 employees at a company, 20% are managers and the rest are not managers. If 60% of the managers work in the engineering department, how many managers do not work in the engineering department?

(A) 36
(B) 54
(C) 90
(D) 180
(E) 216

solve 2x2 matrix
---Manager--Not Manager---total
Ed--54------ ----------
Ned--36---- ---------
Total--90---360--------450

IMO A
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