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Discussion

  1. A shopkeeper earned Rs. 504 in 12 days. His average income for the first four days was Rs. 40 a day. His average income for the remaining days is?
    1. Rs. 40
    2. Rs. 42
    3. Rs. 43
    4. Rs. 45
  1. Correct Option: C

    Let the average for remaining 8 days be Rs. y a day.
    Then, ( 4 x 40 ) + 8y = 504
    ⇒ 8y = 344
    ⇒ y = 43
    ∴ required average Rs. 43


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