Multiple Choice Questions on In a note collection there is one new Rs 2000 note for every three old Rs 500 notes 10 more new Rs 2........... for Civil Services Exam (CSAT) Preparation

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Multiple Choice Questions

In a note collection there is one new Rs 2000 note for every three old Rs 500 notes 10 more new Rs 2...........

Math and Mental Ability Simplification
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    In a note collection, there is one new Rs.2000 note for every three old Rs.500 notes. 10 more new Rs.2000 notes are added to the collection and the ratio of new Rs.2000 notes to old Rs.500 notes would be 1: 2. Based on the information, the total number of notes in the collection now becomes?

    60

    Incorrect Answer

    30

    Incorrect Answer

    70

    Incorrect Answer

    90

    Correct Answer
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    Explanation:

    Let 'x' be the number of new Rs.2000 notes.

    Given for one new 2000 note there are three old 500 notes.

    i.e, 3x


    Given 10 more new Rs.2000 notes are added to the collection
    and the ratio of new Rs.2000 notes to old Rs.500 notes 

    Therefore, number of new Rs.2000 notes =  x+10 = 30.

    old Rs.500 notes = 3x = 60.

    Thus, the total number of notes in the collection  = 30 + 60 = 90.

    By: Munesh Kumari
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