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NDA - Mathematics A P Test 1182
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NDA - Mathematics A P Test 1182
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  • Question 1/5
    1 / -0.33
    If p, q, r are in AP as well as GP, then which one of the following is correct?
    Solutions

    Correct Answer is option D

    If p, q, r are in AP,

    And if p, q, r are in GP then

  • Question 2/5
    1 / -0.33

    Directions For Questions

    FOR THE NEXT TWO (02) QUESTIONS THAT FOLLOW :

    The sum of first 10 terms and 20 terms of an AP are 120 and 440 respectively.

    ...view full instructions

    What is its first term?

    Solutions

    Correct Answer is option B








  • Question 3/5
    1 / -0.33

    Directions For Questions

    FOR THE NEXT TWO (02) QUESTIONS THAT FOLLOW :

    The sum of first 10 terms and 20 terms of an AP are 120 and 440 respectively.

    ...view full instructions

    What is the common difference?
    Solutions

    Correct Answer is option B









  • Question 4/5
    1 / -0.33
    3 A .M.’s between 3 and 19 are
    Solutions

    Let  be three A.M.’s. Then  are in A.P.

    ⇒ common difference .Therefore  , ,

  • Question 5/5
    1 / -0.33
    In the sum of the series  term is  and then  term is negative, then:
    Solutions

    Correct option is B.

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