Multiple Choice Questions on There are 35 students in a hostel If the number of students increased by 7 the expenses of the........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

There are 35 students in a hostel If the number of students increased by 7 the expenses of the...........

Quantitative Aptitude ( CCS) Average
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     There are 35 students in a hostel. If the number of students increased by 7, the expenses of the mess were increased by Rs. 42 per day while the average expenditure per head diminished by Re.1. Find the original expenditure of the mess.

    Rs. 480

    Incorrect Answer

    Rs. 440

    Incorrect Answer

    Rs. 520

    Incorrect Answer

    Rs. 420

    Correct Answer
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    Explanation:

    Let the original average expenditure be Rs.x then,

    42(x−1) − 35x = 42

    ⇒7x = 84
    ⇒x =12

    Therefore original expenditure

    = Rs.(35×12)

    = Rs. 420

    By: Deepak Dawra
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