Home
Class 12
MATHS
Each of 8 questions in a papeer has an a...

Each of 8 questions in a papeer has an alternative. Number of ways in which a candidate can answer one or more questions is -

A

`3^(8)-1`

B

`2 ^(8)`

C

`3 ^(8)`

D

`2 ^(8)-1`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 8|90 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 6|90 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 5|89 Videos

  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 C Very short answer type question|18 Videos

Similar Questions

Explore conceptually related problems

Eight questions are given , each question has an alternative Prove that the number of ways in which a student can select one or more Questions is (2^(8)-1) .

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

There are 3 sections in a question paper each containing 5 questions. A candidate has to solve only 5 questions, choosing at least one question from each section. In how many ways can he make his choice ?

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 ?

At an election a voter may vote for any number of candidates not greater than the number of candidates to be chosen there are 10 candidates and 5 members are to chosen the number of ways in which a voter may vote at a least one candidate is given by

In an examination of nine papers, a candidate has to pass in more papers than the number of paper in which he fails in order to be successful. The number of ways in which he can be unsuccessful is a. 256 b. 266 c. 193 d. 319

In a multiple choice question, there are four alternative answers of which one or more than one is correct A candidate will get marks on the question only if he ticks the correct answer. The candidate decides to tick answers at a random. If he is allowed up to three chances to answer the question, then find the probability that he will get marks on it.

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?

In an objective paper, there are two sections of 10 questions each.For "section 1", each question has 5 options and only one optionis correct and "section 2" has 4 options with multiple answers and marks for a question in this section is awarded only if he ticks all correct answers. Marks for each question in "sectionl 1" is 1 and in "section 2" is 3. (There is no negative marking.) If a candidate attempts only two questions by guessing, one from "section 1" and one from "section 2", the probability that he scores in both question is

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?

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 7
  1. Find the value of (sqrt4, 4sqrt4 . 8sqrt4. 16sqrt4…oo)is-

    Text Solution

    |

  2. If a,b,c are three unequal numbers such that a,b,c are in A.P. and (b-...

    Text Solution

    |

  3. Each of 8 questions in a papeer has an alternative. Number of ways in ...

    Text Solution

    |

  4. The real numbers that satisfy the equation x^(2) +6 |x| -9 =0 are-

    Text Solution

    |

  5. The value of [(1+i)^(6) +(1-i) ^(6)] is-

    Text Solution

    |

  6. The value of the sum 11^(3) +12 ^(3)+…+20^(3)-

    Text Solution

    |

  7. The probability of having a king and a queen when two cards are drawn ...

    Text Solution

    |

  8. If the mean and coefficeint of mean diviation about mean of a distribu...

    Text Solution

    |

  9. The number of diagonals of a polygon of n sides is-

    Text Solution

    |

  10. If a,b,c are in G. P. and x, y are A.M. of a, b and b, c respectively,...

    Text Solution

    |

  11. A team of 10 plyers is formed out of 22 players , if 6 particular play...

    Text Solution

    |

  12. The set of all real numbers x, for which x^(2) - |x+2|+x gt 0 is alway...

    Text Solution

    |

  13. In n in NN, then (3^(2n+2) -2 ^(3n)-9) is always divisible by -

    Text Solution

    |

  14. If ((1+i)/(1-i))^(x)=1, then-

    Text Solution

    |

  15. If in the binomial expansion of (a+x) ^(n) where n is a natural numbe...

    Text Solution

    |

  16. If z and w are two non-zero complex numbers such that |zw| =1 and argw...

    Text Solution

    |

  17. The modulus and the amplitude of (1+isqrt3)^(2) are respectively-

    Text Solution

    |

  18. The complex number z satisfying the question |(i -z)/(i+z)|=1 lies on-

    Text Solution

    |

  19. If the mth and nth terms of a H.P. are n and m respectively, then its ...

    Text Solution

    |

  20. Solution of the inequations -11 le 4x -3 lt 13 is-

    Text Solution

    |