A man spends on an average Rs., 269.47 for first 7 ,months and Rs., 281.05 for next 5, months. Find

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A man spends on an average $Rs.\, 269.47$ for the first $7 \,months$ and $Rs.\, 281.05$ for the next $5\, months.$ Find out his monthly salary if he saved $Rs.\,308.46$ during the $year.$ (in $Rs.$)

A

$400$

B

$500$

C

$300$

D

$600$

Solution

Total spending in $12$ months

$=Rs.\,[269.47 \times 7+281.05 \times 5]$

$=Rs.\, 3291.54$

Total income $=$ spendings $+$ savings $=Rs.\, 3291.54\,+\,Rs.\, 308.46$

$=Rs.\, 3600.00$

$\therefore$ Monthly salary $=Rs.\, \frac{3600}{12}=Rs.\, 300$

Standard 13

Quantitative Aptitude

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