Question:
he average monthly income of a person in a certain family of 5 members is Rs. 1000. What will be monthly average income of one person in the same family if the income of one person increased by Rs. 12000/- per year?
he average monthly income of a person in a certain family of 5 members is Rs. 1000. What will be monthly average income of one person in the same family if the income of one person increased by Rs. 12000/- per year?
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Convert annual changes to monthly when averages are monthly; update total first, then divide for the new average.
Updated On: Aug 12, 2025
- Rs. 1200/-
- Rs. 1600/-
- Rs. 2000/-
- Rs. 3400/-
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The Correct Option is A
Solution and Explanation
Initial total monthly income = $5\times 1000=5000$ Rs.
Increase of Rs. 12000 per year = Rs. $\dfrac{12000}{12}=1000$ per month.
New total monthly income = $5000+1000=6000$ Rs.
Step 4: New average per person = $6000\div 5=1200$ Rs.
Hence option (a).
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