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4.Average
hard
Fifteen movie theatres average $600$ customers per theatre per day. If $six$ of the theaters close down but the total theater attendance stays the same, then the average daily attendance per theatre among the remaining theaters is
A
$900$
B
$1000$
C
$1100$
D
$1200$
Solution
Sum of $15$ theater attendance $=600 \times 15=9000$
Sum of $6$ theater attendance $=600 \times 6=3600$
There $3600$ persons should be splitted to $9$ theaters
$\frac{3600}{9}=400$
: Average daily attendance/theater among the remaining theater $=600+400=1000$
Standard 13
Quantitative Aptitude
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