A question paper contain 15 questions. In how many ways can 7 questions be attempted?

A question paper contains 20 questions in how many ways can 4 questions be attempted?

In an examination a question paper consists of' 12 questions divided into 2 parts I and II containing 5 and 7 questions respectively. A student is required to attempt 8 questions. In how many ways he can select 3 questions from part I and 5 questions from part II?

There are 5 questions in a questions paper. In how many ways can boy solve one or more questions?

In an examination a question paper consists of' 12 questions divided into 2 parts I and H containing 5 and 7 questions respectively. A student is required to attempt 8 questions. In how many ways the student can answer 8 questions by selecting at least 3 questions from each part.

A question paper on mathematics consists of 12 questions divided in to 3 pars A, B and C, each containing 4 questions. In how many ways can an examinee answer questions selecting at least one from each part.

A question paper has 6 questions. How many ways does a student have to answer if he wants to solve at least one question?

There are three section A,B, C in a paper each section having 5 questions . In how many ways a student can solve exactly 5 questions taken at least one question from each section.