SOLUTION :
A NEW OG 2021 QUESTION
Its a question testing on your application skills in Overlapping sets(Concept-Set Theory).
Seniors taking Calculus (C)= 80% = 80 students
Seniors taking BOTH Calculus and Physics( C AND P) = 60% of 80 =48 students
=>Thus, seniors taking ONLY Calculus = 80 -48 =32
Seniors taking neither calculus nor physics= 10% = 10 students
We know Total = Only C + (C & P) + Only P +Neither
=> 100 = 32 + 48+ Only P + 10
=> 100 = 32+ 48 + Only P + 10
=> Only P = 100-90 = 10
The total number of seniors taking Physics
= Only P + (C & P)
=10 + 48 =58 (OPTION D)
In a certain high school, 80 percent of the seniors are taking calculus, and 60 percent of the seniors who are taking calculus are also taking physics. If 10 percent of the seniors are taking neither calculus nor physics, what percent of th Print
Modified on: Tue, 12 Oct, 2021 at 3:56 PM
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