Multiple Choice Questions on Out of ten persons 9 persons spent Rs 30 each for their lunch The tenth one spent Rs 90 more than th........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Out of ten persons 9 persons spent Rs 30 each for their lunch The tenth one spent Rs 90 more than th...........

Quantitative Aptitude ( CCS) Average
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    Out of ten persons, 9 persons spent Rs. 30 each for their lunch. The tenth one spent Rs. 90 more than the average expenditure of all the ten. The total money spent by all of them was

    Rs400

    Correct Answer

    Rs360

    Incorrect Answer

    Rs420

    Incorrect Answer

    Rs380

    Incorrect Answer
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    Explanation:

    Solution:
    Let the average be x.
    Then 10x =9*30 + (x+90)
    10x=270+90+x
    9x=360
    x=40.
    Total money spent= 10*40 =Rs400.

    By: Pranav Gupta
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