Home
Class 12
MATHS
A question paper on mathematics consists...

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.

Text Solution

Verified by Experts

The correct Answer is:
`. ^(12)C_(5)-3xx .^(8)C_(5)`
Required number of ways=Total number of ways in which he does not select any question from any one section `= .^(12)C_(5)-3 xx .^(8)C_(5)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A question paper on mathematics consists of 12 questions divided into 3 parts A, B and C, each containing 4 questions. In how many ways can an examinee answer 5 questions selecting at least one from each part.

In an examination, a question paper consists of 12 questions divided into two parts i.e., Part I and Part II, containing 5 and 7 questions, respectively. A student is required to attempt 8 questions in all, selecting at least 3 from each part. In how many ways can a student select the questions?

A question paper contains 12 questions divided into three parts.Parts A contains 6 questions while B and C contains 3 questions each.A candidate is required to attempt 6 questions selecting at least two from part A and atleast one from each of the parts B and C.In how many ways can the candidate select 6 questions?

A question paper contains 12 questions , divided into three parts . Part A contains 6 questions parts B and C contain 3 questions each A candidate is required to attempt 6 questions , selecting at least 3 questions from part A and at least one from each of the parts B and C In how many ways can the candidate select his 6 questions ?

A question paper contains , which are divided into two groups each containing 5 questions . A candidate is asked to answer 6 questions only ,and to choose at least 2 questions from each group . In how many different ways can the candidate make up his choice ?

In how many ways can 30 marks be allotted to 8 question if each question carries at least 2 marks?

An examinee is required to answer 6 questions out of 12 question which are divided into two groups each containing 6 questions ,and he is not permitted to answer more than 4 questions from any group . In how many ways can be answer 6 questions ?

An examine is required to answer 6 questions out of 12 questions which are divided into two groups each containing 6 questions, and he is not permitted to answer more than 4 questions from any group. In how many ways can be answered 6 questions ?

A candidate is required to answer 6 out of 10 questions, which are divide into two groups, each containing 5 questions. He is not permitted to attempt more than 4 questions from either group. The number of different ways in which the candidate can choose 6 questions is a. 50 b. 150 c. 200 d. 250

For an examination a candidate has to select 7 subjects from 3 different groups A,B,C which contain 4,5,6 subjects respectively in how many different ways can a candidate make his selection if he has to select at least 2 subjects from each group?