A man spends Rs., 1800 monthly on an average for first four months and Rs. ,2000 monthly for next ei

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A man spends $Rs.\, 1800$ monthly on an average for the first four months and $Rs. \,2000$ monthly for the next eight months and saves $Rs. \,5600$ a year. His average monthly income is (in $Rs.\,$)

A

$2000$

B

$2200$

C

$2400$

D

$2600$

Solution

Sum of expenditure for first four months $=1800 \times 4=$ Rs. $7200$

Sum of expenditure for next eight months $=2000 \times 8=16000$ Rs

saving $=5600$ Rs.

Average monthly Income

$=\frac{7200+16000+5600}{12}=\frac{28800}{12}=$ Rs. 2400

Standard 13

Quantitative Aptitude

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