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27-03-2020
Mathematics

contestada

A test consists of 20 problems and students are told to answer any 15 of these questions. In how many different ways can they choose the 15 questions?

15,504

20,145

23,670

25,890

Respuesta :

27-03-2020

Answer:

they can choose the 15 questions depending if they are easy for them or hard or adding multiplying subracting dividing ect.

Step-by-step explanation:

by difficulty or easy

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