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Question

The average monthly income of a four members of a family is Rs 610.25 after the marriage of one girl the average income of the family becomes Rs 650 75, then the salary of married girl is

A
Rs 488.25
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B
Rs 488.75
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C
Rs 479.75
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D
Rs 489.25
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Solution

The correct option is C Rs 488.75
The average monthly income of four members=Rs.610.25
Total income of the 4 members=610.25×4=Rs.2441
After marriage of one girl there are 3 members left in the family.
And average of the 3 members of the family=Rs.650.75
Total income of the 3 members=650.75×3=Rs.1952.25
Then the salary of the married girl=24411952.25=Rs.488.75


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