Multiple Choice Questions on Out of 9 persons 8 persons spent Rs 30 each for their meals The ninth one spent Rs 20 more than the ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Out of 9 persons 8 persons spent Rs 30 each for their meals The ninth one spent Rs 20 more than the ...........

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    Out of 9 persons, 8 persons spent Rs. 30 each for their meals. The ninth one spent Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was : 

    Rs. 292.50

    Correct Answer

    Rs. 297.50

    Incorrect Answer

    Rs. 298

    Incorrect Answer

    Rs. 298.50

    Incorrect Answer
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    Explanation:

    Let the average expenditure be Rs. x Then,
    9x=[(8*30)+(x+20)]<=>9x =x+260 <=> x =32.50
    Total money spent = 9x =  Rs. (9 x 32.5O) = Rs 292. 50

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