turkey-yks 2024 Q29

turkey-yks · Other · yks-tyt Combinations & Selection Basic Combination Computation
Duru observed that she was present in 45 of all three-person groups that could be formed from the students in her class.
Accordingly, in how many of all three-person groups that could be formed from the students in Duru's class is Duru not present?
A) 20
B) 35
C) 90
D) 105
E) 120 
Duru observed that she was present in 45 of all three-person groups that could be formed from the students in her class.

Accordingly, in how many of all three-person groups that could be formed from the students in Duru's class is Duru not present?

A) 20

B) 35

C) 90

D) 105

E) 120
Paper Questions
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